CN219978181U - Humidity display equipment - Google Patents
Humidity display equipment Download PDFInfo
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- CN219978181U CN219978181U CN202321553160.XU CN202321553160U CN219978181U CN 219978181 U CN219978181 U CN 219978181U CN 202321553160 U CN202321553160 U CN 202321553160U CN 219978181 U CN219978181 U CN 219978181U
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- circuit chip
- resistor
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- 239000003990 capacitor Substances 0.000 claims abstract description 144
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 239000003381 stabilizer Substances 0.000 claims description 14
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to the technical field of power distribution cabinets, in particular to humidity display equipment; the humidity measurement display circuit comprises an integrated circuit chip and a first capacitor, wherein the second end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor, and a second capacitor plate of the first capacitor is grounded; the integrated circuit chip comprises a first capacitor, a second capacitor, a first diode and a second diode, wherein a first end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor; by arranging the first capacitor, the accuracy of humidity measurement is improved by utilizing the characteristics of quick response and high sensitivity of the capacitive sensor; and the direct-current voltmeter is arranged for display, so that the intuitiveness of measurement output is improved.
Description
Technical Field
The utility model relates to the technical field of power distribution cabinets, in particular to a humidity display device.
Background
There is a certain requirement for the humidity in the power distribution cabinet. Patent CN104638547a provides a power distribution cabinet with temperature and humidity control, which comprises a cabinet body, a cabinet door and a fan, wherein the cabinet body is in a cuboid shape, the fan is arranged at the right upper corner of the interior of the cabinet body, a control system is arranged on the rear panel of the interior of the cabinet body, two temperature sensors are respectively arranged on the upper panel and the lower panel of the interior of the cabinet body, four temperature sensors are arranged on the right panel of the interior of the cabinet body, a humidity sensor is arranged on the left panel of the interior of the cabinet body, a dehumidifier is arranged below the humidity sensor, the control system controls the operation of the fan according to the temperature value set in the interior of the cabinet body, and meanwhile, the operation of the dehumidifier is controlled according to the humidity value set in the interior of the cabinet body; the temperature and humidity in the real-time monitoring power distribution cabinet body are reasonably structured, the defect that temperature control is acquired by a single point by a traditional temperature and humidity controller is overcome, the control accuracy requirement is met, the control speed is obviously accelerated, and the constant temperature and humidity in the power distribution cabinet body in the power system is effectively ensured. But the accuracy of the measurement is not high and the dynamic sensitivity is low, resulting in poor accuracy of the humidity measurement.
Therefore, in order to solve the above problems, it is urgently required to invent a new power distribution cabinet.
Disclosure of Invention
The utility model aims at: the humidity display device can rapidly, accurately and intuitively display the humidity in the power distribution cabinet.
The utility model provides the following scheme:
the humidity display device comprises a humidity measurement display circuit, wherein the humidity measurement display circuit comprises an integrated circuit chip and a first capacitor, a second end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor, and a second capacitor plate of the first capacitor is grounded;
the integrated circuit chip comprises a first capacitor, a second capacitor, a first diode and a second diode, wherein the first capacitor plate of the first capacitor is electrically connected with the second capacitor, the second capacitor plate of the first capacitor is electrically connected with the conducting end of the second diode, and the cut-off end of the second diode is electrically connected with the positive electrode of a direct-current voltmeter for indicating humidity; the first capacitor plate of the third capacitor is electrically connected with the common connection point of the third end of the integrated circuit chip and the fourth capacitor, and the second capacitor plate of the third capacitor is grounded; and the cut-off end of the first diode is electrically connected with a common connection point of the fourth capacitor and the second diode, and the conducting end of the first diode is grounded.
Preferably, the humidity display device further includes a fifth capacitor, a first capacitor plate of the fifth capacitor is electrically connected to a common connection point of the cut-off end of the second diode and the dc voltmeter, and a second capacitor plate of the fifth capacitor is grounded.
Preferably, the humidity display device further includes a potentiometer for zeroing, a first end of the potentiometer is electrically connected with the eighth end of the integrated circuit chip, a second end of the potentiometer is grounded, and an adjusting end of the potentiometer RP is electrically connected with the negative electrode of the direct current voltmeter.
Preferably, the humidity display device further includes a first resistor and a second resistor, one end of the first resistor is electrically connected to the fourth end of the integrated circuit chip, and the other end of the first resistor is electrically connected to the seventh end of the integrated circuit chip; one end of the second resistor is electrically connected with the seventh end of the integrated circuit chip, and the other end of the second resistor is electrically connected with the first capacitor plate of the first capacitor.
Preferably, the humidity display device further includes a third resistor, one end of the third resistor is electrically connected to the first end of the potentiometer, and the other end of the third resistor is electrically connected to the eighth end of the integrated circuit chip.
Preferably, the humidity display device further includes a second capacitor, a first capacitor plate of the second capacitor is electrically connected to the fifth end of the integrated circuit chip, and a second capacitor plate of the second capacitor is grounded.
Preferably, the humidity display device further includes a voltage stabilizer, a fourth resistor, a control switch and a power supply, wherein a cutoff end of the voltage stabilizer is electrically connected with a common connection point of the third resistor and an eighth end of the integrated circuit chip, and a conductive end of the voltage stabilizer is grounded; the power supply, the control switch and the fourth resistor are sequentially connected in series, and the fourth resistor is electrically connected with the cut-off end of the voltage stabilizer.
Preferably, the humidity display device further includes a sixth capacitor, and the sixth capacitor is connected in parallel with the voltage stabilizer.
Preferably, the eighth end of the integrated circuit chip and the fourth end of the integrated circuit chip are connected in parallel.
Preferably, the first end of the integrated circuit chip is grounded.
The utility model has the beneficial effects that:
the humidity display device comprises a humidity measurement display circuit, wherein the humidity measurement display circuit comprises an integrated circuit chip and a first capacitor, the second end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor, and a second capacitor plate of the first capacitor is grounded; the integrated circuit chip comprises a first capacitor, a second capacitor, a first diode and a second diode, wherein the first capacitor plate of the first capacitor is electrically connected with the second capacitor, the second capacitor plate of the first capacitor is electrically connected with the conducting end of the second diode, and the cut-off end of the second diode is electrically connected with the positive electrode of a direct-current voltmeter for indicating humidity; the first capacitor plate of the third capacitor is electrically connected with the common connection point of the third end of the integrated circuit chip and the fourth capacitor, and the second capacitor plate of the third capacitor is grounded; the cut-off end of the first diode is electrically connected with a common connection point of the fourth capacitor and the second diode, and the conducting end of the first diode is grounded; by arranging the first capacitor, the accuracy of humidity measurement is improved by utilizing the characteristics of quick response and high sensitivity of the capacitive sensor; and display output is carried out by setting a direct-current voltmeter, so that the intuitiveness of measurement output is improved.
Drawings
Fig. 1 is a schematic structural view of a humidity display device according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a humidity display device includes a humidity measurement display circuit, where the humidity measurement display circuit includes an integrated circuit chip IC555 and a first capacitor C1, a second end 2 of the integrated circuit chip IC555 is electrically connected to a first capacitor plate of the first capacitor C1, and a second capacitor plate of the first capacitor C1 is grounded;
the integrated circuit chip IC555 is electrically connected with the first capacitor plate of the fourth capacitor C4, the second capacitor plate of the fourth capacitor C4 is electrically connected with the conducting end of the second diode VD2, and the cut-off end of the second diode VD2 is electrically connected with the anode of the direct current voltmeter for indicating humidity; the first capacitor plate of the third capacitor C3 is electrically connected to the common connection point of the third terminal 3 of the integrated circuit chip IC555 and the fourth capacitor C4, and the second capacitor plate of the third capacitor C3 is grounded; the cut-off end of the first diode VD1 is electrically connected to the common connection point of the fourth capacitor C4 and the second diode VD2, and the conducting end of the first diode VD1 is grounded.
Referring to fig. 1, the humidity display device further includes a fifth capacitor C5, where a first capacitor plate of the fifth capacitor C5 is electrically connected to a common connection point of the cut-off end of the second diode VD2 and the dc voltmeter, and a second capacitor plate of the fifth capacitor C5 is grounded. The circuit further comprises a potentiometer RP used for zeroing, wherein a first end of the potentiometer RP is electrically connected with an eighth end 8 of the integrated circuit chip IC555, a second end of the potentiometer RP is grounded, and an adjusting end of the potentiometer RP is electrically connected with the negative electrode of the direct current voltmeter. The integrated circuit chip IC comprises an integrated circuit chip IC555, and further comprises a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 is electrically connected with a fourth end 4 of the integrated circuit chip IC555, and the other end of the first resistor R1 is electrically connected with a seventh end 7 of the integrated circuit chip IC 555; one end of the second resistor R2 is electrically connected to the seventh end 7 of the integrated circuit chip IC555, and the other end of the second resistor R2 is electrically connected to the first capacitor plate of the first capacitor C1.
Referring to fig. 1, the humidity display device further includes a third resistor R3, one end of the third resistor R3 is electrically connected to the first end of the potentiometer RP, and the other end of the third resistor R3 is electrically connected to the eighth end 8 of the integrated circuit chip IC 555. The integrated circuit chip IC555 further comprises a second capacitor C2, wherein a first capacitor plate of the second capacitor C2 is electrically connected with the fifth end 5 of the integrated circuit chip IC555, and the second capacitor plate of the second capacitor C2 is grounded. The circuit also comprises a voltage stabilizer VS, a fourth resistor R4, a control switch SA and a power supply V, wherein the cut-off end of the voltage stabilizer VS is electrically connected with a common connection point of the third resistor R3 and an eighth end 8 of the integrated circuit chip IC555, and the conduction end of the voltage stabilizer VS is grounded; the power supply V, the control switch SA and the fourth resistor R4 are sequentially connected in series, and the fourth resistor R4 is electrically connected with the cut-off end of the voltage stabilizer. And a sixth capacitor C6 is further included, and the sixth capacitor C6 is connected with the voltage stabilizer in parallel. The eighth terminal 8 of the integrated circuit chip IC555 is connected in parallel with the fourth terminal 4 of the integrated circuit chip IC 555. The first end 1 of the integrated circuit chip IC555 is grounded.
The humidity display device disclosed by the embodiment of the utility model comprises a humidity measurement display circuit, wherein the humidity measurement display circuit comprises an integrated circuit chip and a first capacitor, the second end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor, and a second capacitor plate of the first capacitor is grounded; the integrated circuit chip comprises a first capacitor, a second capacitor, a first diode and a second diode, wherein the first capacitor plate of the first capacitor is electrically connected with the second capacitor, the second capacitor plate of the first capacitor is electrically connected with the conducting end of the second diode, and the cut-off end of the second diode is electrically connected with the positive electrode of a direct-current voltmeter for indicating humidity; the first capacitor plate of the third capacitor is electrically connected with the common connection point of the third end of the integrated circuit chip and the fourth capacitor, and the second capacitor plate of the third capacitor is grounded; the cut-off end of the first diode is electrically connected with a common connection point of the fourth capacitor and the second diode, and the conducting end of the first diode is grounded; by arranging the first capacitor, the accuracy of humidity measurement is improved by utilizing the characteristics of quick response and high sensitivity of the capacitive sensor; and display output is carried out by setting a direct-current voltmeter, so that the intuitiveness of measurement output is improved.
The humidity detection circuit of the humidity display device in this embodiment can provide the humidity in the switch board fast, accurately, audio-visual, and its theory of operation is: the first capacitor C1 is a plate capacitor formed by two copper plates with the same area and constant distance, when liquid drops fall between the two plates, the original air of the medium is changed into liquid, the change of the medium loss is caused, and the capacitance is increased; the oscillation frequency of the multivibrator formed by the integrated circuit chip IC555 also changes, and the difference of humidity can also cause the change of the oscillation frequency, so that the rectified direct current voltage also changes; the humidity is converted into a direct-current voltage and indicated by a direct-current voltmeter; the capacitance of the first capacitor C1 only has extremely small change, the direct-current voltmeter V1 has extremely large indication change, the sensitivity is high, and the dynamic response is quick; if the direct-current voltmeter shows qualified red bands or inscribed humidity indication, whether the humidity is qualified can be intuitively shown.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A humidity display device characterized by: the humidity measurement display circuit comprises an integrated circuit chip and a first capacitor, wherein the second end of the integrated circuit chip is electrically connected with a first capacitor plate of the first capacitor, and a second capacitor plate of the first capacitor is grounded;
the integrated circuit chip comprises a first capacitor, a second capacitor, a first diode and a second diode, wherein the first capacitor plate of the first capacitor is electrically connected with the second capacitor, the second capacitor plate of the first capacitor is electrically connected with the conducting end of the second diode, and the cut-off end of the second diode is electrically connected with the positive electrode of a direct-current voltmeter for indicating humidity; the first capacitor plate of the third capacitor is electrically connected with the common connection point of the third end of the integrated circuit chip and the fourth capacitor, and the second capacitor plate of the third capacitor is grounded; and the cut-off end of the first diode is electrically connected with a common connection point of the fourth capacitor and the second diode, and the conducting end of the first diode is grounded.
2. The wetness display device of claim 1, wherein the wetness display device comprises: the direct-current voltage meter further comprises a fifth capacitor, wherein a first capacitor plate of the fifth capacitor is electrically connected with a cut-off end of the second diode and a common connection point of the direct-current voltage meter, and a second capacitor plate of the fifth capacitor is grounded.
3. The wetness display device of claim 2, wherein the wetness display device comprises: the circuit further comprises a potentiometer for zeroing, wherein a first end of the potentiometer is electrically connected with an eighth end of the integrated circuit chip, a second end of the potentiometer is grounded, and an adjusting end of the potentiometer RP is electrically connected with a negative electrode of the direct-current voltmeter.
4. A wetness display device as in claim 3, wherein: the integrated circuit comprises an integrated circuit chip, and is characterized by further comprising a first resistor and a second resistor, wherein one end of the first resistor is electrically connected with the fourth end of the integrated circuit chip, and the other end of the first resistor is electrically connected with the seventh end of the integrated circuit chip; one end of the second resistor is electrically connected with the seventh end of the integrated circuit chip, and the other end of the second resistor is electrically connected with the first capacitor plate of the first capacitor.
5. The wetness display device of claim 4, wherein: the integrated circuit further comprises a third resistor, one end of the third resistor is electrically connected with the first end of the potentiometer, and the other end of the third resistor is electrically connected with the eighth end of the integrated circuit chip.
6. The wetness display device of claim 5, wherein: the integrated circuit chip further comprises a second capacitor, wherein a first capacitor plate of the second capacitor is electrically connected with the fifth end of the integrated circuit chip, and the second capacitor plate of the second capacitor is grounded.
7. The wetness display device of claim 6, wherein: the circuit also comprises a voltage stabilizer, a fourth resistor, a control switch and a power supply, wherein the cut-off end of the voltage stabilizer is electrically connected with a common connection point of the third resistor and the eighth end of the integrated circuit chip, and the conducting end of the voltage stabilizer is grounded; the power supply, the control switch and the fourth resistor are sequentially connected in series, and the fourth resistor is electrically connected with the cut-off end of the voltage stabilizer.
8. The wetness display device of claim 7, wherein the wetness display device comprises: the voltage regulator further comprises a sixth capacitor, wherein the sixth capacitor is connected with the voltage regulator in parallel.
9. The wetness display device of claim 8, wherein the wetness display device comprises: an eighth end of the integrated circuit chip is connected in parallel with a fourth end of the integrated circuit chip.
10. The wetness display device of claim 9, wherein the wetness display device comprises: the first end of the integrated circuit chip is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321553160.XU CN219978181U (en) | 2023-06-19 | 2023-06-19 | Humidity display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321553160.XU CN219978181U (en) | 2023-06-19 | 2023-06-19 | Humidity display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219978181U true CN219978181U (en) | 2023-11-07 |
Family
ID=88579585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321553160.XU Active CN219978181U (en) | 2023-06-19 | 2023-06-19 | Humidity display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219978181U (en) |
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2023
- 2023-06-19 CN CN202321553160.XU patent/CN219978181U/en active Active
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