CN211119896U - Digital regulating temperature controller - Google Patents
Digital regulating temperature controller Download PDFInfo
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- CN211119896U CN211119896U CN201922191531.4U CN201922191531U CN211119896U CN 211119896 U CN211119896 U CN 211119896U CN 201922191531 U CN201922191531 U CN 201922191531U CN 211119896 U CN211119896 U CN 211119896U
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- 230000001105 regulatory effect Effects 0.000 title claims description 13
- 238000005070 sampling Methods 0.000 claims abstract description 26
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a digital regulation temperature controller relates to the temperature controller field, and its technical scheme main points are including the panel, set up the liquid crystal display module on the panel, set up the knob module on the panel, be provided with control circuit under the panel, control circuit includes MCU module, temperature sampling module, switch output module and liquid crystal display module connect respectively on the signal pin of MCU module, have the panel structure of knob control, realize the digital regulation feedback, improve service reliability and life.
Description
Technical Field
The utility model relates to a temperature controller field, in particular to a digital regulation temperature controller.
Background
Refer to a current temperature controller, as patent number: 201020203294.5, discloses a digital temperature controller of a fan coil, which comprises a microprocessor, a liquid crystal display module and control keys, wherein the liquid crystal display module is a touch screen, and the processor is provided with an infrared receiving device; the structure aims at that: the traditional temperature controller is replaced, and a microprocessor is adopted to control a fan coil of a central air-conditioning system to regulate the room temperature; the system can be automatically programmed, and four time periods and corresponding temperature values are respectively set for five working days of Monday to Friday and two non-working days on weekends; the temperature controller is remotely controlled by matching with a remote controller; and an RS485 communication interface is provided and connected with a computer to realize remote monitoring and control.
With the continuous progress of the science and technology level, the existing adjustable temperature controller adopts keys to realize signal input, and controls the addition and subtraction of the temperature setting by the keys, but the speed of the key operation mode is slower, the use convenience degree is not high, and the service life is not high.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a digital regulation temperature controller has knob control's panel structure, realizes the digital regulation feedback, improves and uses reliability and life.
In order to solve the technical problem, the technical scheme of the utility model is that: a digital regulation temperature controller comprises a panel, a liquid crystal display module arranged on the panel and a knob module arranged on the panel, wherein a control circuit is arranged under the panel and comprises an MCU module, a temperature sampling module and a switch output module, and the temperature sampling module, the switch output module and the liquid crystal display module are respectively connected to a signal pin of the MCU module;
the temperature sampling module is used for collecting the ambient temperature and feeding back a temperature signal to the MCU module;
the liquid crystal display module is used for displaying temperature data;
the switch output module is used for realizing on-off control of a circuit according to a control command of the MCU module;
the MCU module is used for acquiring a control signal of the knob module and sending out a control command;
the knob module comprises a digital potentiometer and a rotary cover, the rotary cover is arranged above the closed panel and is connected with the digital potentiometer in an inserting mode, and the digital potentiometer is electrically connected with the MCU module.
Preferably, the digital potentiometer comprises a main body part, a plurality of resistors, a voltage source and a signal output end, the main body part is provided with a grounding pin and a plurality of voltage regulating pins, each voltage regulating pin is connected with a connection point of two serially connected resistors, one end of each serially connected resistor is connected with the voltage source, and the other end of each serially connected resistor is used as the signal output end.
Preferably, a voltage follower is arranged between the signal output end and the MCU module.
Preferably, the flanging of the rotary cover abuts against the surface of the panel, a circle of convex blocks are arranged on the inner side of the rotary cover, a metal sheet is fixed on the panel in a path opposite to the convex blocks, and the metal sheet is used for being stirred by the convex blocks to generate vibration sound.
Preferably, an annular cavity is formed on the inner side of the spiral cover, and an annular sponge is arranged in the annular cavity.
Preferably, the temperature sampling module extends out of the outer side of the bottom shell of the panel, the area of the panel is larger than the area of the bottom shell which is just projected on the panel, the side wall of the bottom shell is provided with a jack, and the temperature sampling module passes through the jack and is limited below the panel.
The utility model discloses technical effect mainly embodies in following aspect:
1. the panel structure layout is simplified, the operation command input and the signal feedback of the panel control are simplified, the convenient operation is realized by using the digital potentiometer and the screw cover, the signal is fed back in real time by using the liquid crystal display module, and the panel can effectively shield the digital potentiometer, so that dust and moisture are not easy to enter, the use reliability is improved, and the service life is prolonged;
2. the temperature sampling module is used for feeding back the ambient temperature, the reliability of temperature detection is considered for the arrangement of the temperature sampling module, the temperature sampling module is arranged outside and is shielded by the panel, the appearance is not influenced, the sampling of the ambient temperature can be improved, and the shielding of the panel also plays a role in protecting the temperature sampling module;
3. the structure of spiral cover is convenient for operate and still has the operation and feels, can better feed back to the rotatory stage of user and feel.
Drawings
FIG. 1 is a schematic front view of a panel in an embodiment;
FIG. 2 is a schematic circuit diagram of an MCU module in the embodiment;
FIG. 3 is a schematic diagram of a digital potentiometer circuit;
FIG. 4 is a schematic circuit diagram of a temperature sampling module;
FIG. 5 is a circuit schematic of a switching output module;
FIG. 6 is a schematic side sectional view of a panel;
FIG. 7 is a schematic view of the structure of the screw cap in the embodiment.
Reference numerals: 1. a panel; 2. a liquid crystal display module; 3. a knob module; 31. a digital potentiometer; 311. a main body portion; 312. a resistor; 313. a voltage source; 314. a signal output terminal; 32. screwing a cover; 321. a bump; 322. a metal sheet; 323. an annular sponge; 4. a control circuit; 41. an MCU module; 42. a temperature sampling module; 43. a switch output module; 5. a voltage follower; 6. and (4) inserting the jack.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Example 1:
a digital temperature controller, as shown in FIG. 1, comprises a panel 1, a liquid crystal display module 2 disposed on the panel 1, and a knob module 3 disposed on the panel 1. A control circuit 4 is arranged under the panel 1, and the control circuit 4 is a PCB circuit board. The specific circuit structure is as follows: the control circuit 4 includes an MCU block 41, a temperature sampling block 42, and a switch output block 43. The temperature sampling module 42, the switch output module 43 and the liquid crystal display module 2 are respectively connected to the signal pins of the MCU module 41.
Referring to fig. 2, the MCU module 41 is a general single chip microcomputer, such as a dsp2812 or 28335. And respective functional pins are selected, and after a minimum system is built, data input and data output are realized.
The temperature sampling module 42 is used for collecting the ambient temperature and feeding back a temperature signal to the MCU module 41; the liquid crystal display module 2 is used for displaying temperature data; the switch output module 43 is used for realizing on-off control of the circuit according to the control command of the MCU module 41; the MCU module 41 is configured to obtain a control signal of the knob module 3 and send a control command.
In fig. 2, the 1 st pins, 3, 4, 25-38, 43, and 44 of the MCU module 41 are all used to connect to the lcd module 2. The 2 nd pin is used for connecting the temperature sampling module 42, and the ADC-POW represents the same connection point. Referring to fig. 4, a specific example of the temperature sampling module 42 is that a temperature sensing resistor RT1 is grounded after being connected in series with a resistor R8, a connection point between the temperature sensing resistor RT1 and the resistor R8 outputs a temperature signal Vtemp through a resistor R9, and is connected to a corresponding pin of the MCU module 41, a capacitor C5 may be connected in parallel to the temperature sensing resistor RT1, and a capacitor C1 may be connected in parallel between a signal terminal Vtemp and a ground terminal. This structure can improve signal transmission stability.
The knob module 3 comprises a digital potentiometer 31 and a rotary cover 32, the rotary cover 32 closes the upper part of the panel 1 and is inserted into the digital potentiometer 31, and the digital potentiometer 31 is electrically connected with the MCU module 41.
Referring to fig. 2 and 3, the digital potentiometer 31 includes a body portion 311, a plurality of resistors 312, a voltage source 313, and a signal output terminal 314. The main body 311 has a ground pin and a plurality of voltage regulation pins. The voltage regulating pins are Vo2+, Vo1+, k1 and k2, and the pin k2 is not used in the embodiment, so the voltage regulating pins are directly grounded. Each voltage regulation pin is connected to the junction of two series-connected resistors 312, one end of the series-connected resistors 312 being connected to a voltage source 313 and the other end serving as a signal output 314. It can be seen that the signal terminal output from the pin K1 is K-PRG, which represents the control signal, the pin Vo1+ outputs K-POW, which represents the power signal, and the pin Vo2+ outputs K-SET, which represents the SET signal. The voltage and the current are regulated.
Referring to fig. 3, alternatively, a voltage follower 5 is provided between the signal output terminal 314 and the MCU block 41. The effect of providing the voltage follower 5 is to increase the load current capability. Under the condition that the voltage is not changed, the output current can be increased by 1 milliampere.
Referring to fig. 5, the switch output module 43 is a circuit controlled by a relay, wherein a coil of the relay is connected in reverse parallel with a diode D4, and one end of the relay is connected to a voltage source 31312V, and the other end of the relay is connected to the MCU module 41 for control, and a switch contact of the relay is used for connecting an external device, so as to turn on or off the external device.
Example 2:
based on the above structure, in addition, the part of the screw cap 32 is improved, referring to fig. 6 and 7, the flanging of the screw cap 32 abuts against the surface of the panel 1, the inner side of the screw cap 32 is provided with a circle of convex blocks 321, a metal sheet 322 is fixed on the panel 1 on the path facing the convex blocks 321, and the metal sheet 322 is used for being stirred by the convex blocks 321 to generate vibration sound and vibration hand feeling.
The inside of the screw cap 32 forms an annular chamber in which an annular sponge 323 is disposed. The ring-shaped sponge 323 can block dust and absorb moisture. The temperature sampling module 42 extends out of the outer side of the bottom shell of the panel 1, the area of the panel 1 is larger than the area of the bottom shell which is just projected on the panel 1, the side wall of the bottom shell is provided with the jack 6, and the temperature sampling module 42 passes through the jack 6 and is limited below the panel 1.
Therefore, the circuit board structure is more reliably installed, the temperature sampling module 42 is more reliably used for collecting the external temperature, and the panel 1 structure is more reliably used.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (6)
1. A digital regulation temperature controller comprises a panel, a liquid crystal display module arranged on the panel and a knob module arranged on the panel, and is characterized in that a control circuit is arranged under the panel, the control circuit comprises an MCU module, a temperature sampling module and a switch output module, and the temperature sampling module, the switch output module and the liquid crystal display module are respectively connected to a signal pin of the MCU module;
the temperature sampling module is used for collecting the ambient temperature and feeding back a temperature signal to the MCU module;
the liquid crystal display module is used for displaying temperature data;
the switch output module is used for realizing on-off control of a circuit according to a control command of the MCU module;
the MCU module is used for acquiring a control signal of the knob module and sending out a control command;
the knob module comprises a digital potentiometer and a rotary cover, the rotary cover is arranged above the closed panel and is connected with the digital potentiometer in an inserting mode, and the digital potentiometer is electrically connected with the MCU module.
2. The digital regulating thermostat of claim 1, wherein the digital potentiometer includes a main body part, a plurality of resistors, a voltage source, and a signal output terminal, the main body part has a ground pin, a plurality of voltage regulating pins, each voltage regulating pin is connected to a connection point of two resistors connected in series, one end of the resistor connected in series is connected to the voltage source, and the other end serves as the signal output terminal.
3. The digitally regulated temperature controller of claim 1, wherein a voltage follower is provided between the signal output and the MCU module.
4. The digital adjusting thermostat of claim 1, wherein the flange of the cover abuts against the surface of the panel, the inner side of the cover is provided with a circle of projections, and a metal sheet is fixed on the panel in a path facing the projections and is used for being stirred by the projections to generate vibration sound.
5. The digital regulating thermostat of claim 1, wherein the inside of the cover forms an annular chamber, and an annular sponge is disposed in the annular chamber.
6. The digital regulating thermostat of claim 1, wherein the temperature sampling module extends out of an outer side of the bottom case of the panel, an area of the panel is larger than an area of the bottom case that is projected on the panel, a jack is formed in a side wall of the bottom case, and the temperature sampling module passes through the jack and is limited below the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191531.4U CN211119896U (en) | 2019-12-10 | 2019-12-10 | Digital regulating temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191531.4U CN211119896U (en) | 2019-12-10 | 2019-12-10 | Digital regulating temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211119896U true CN211119896U (en) | 2020-07-28 |
Family
ID=71702496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922191531.4U Expired - Fee Related CN211119896U (en) | 2019-12-10 | 2019-12-10 | Digital regulating temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211119896U (en) |
-
2019
- 2019-12-10 CN CN201922191531.4U patent/CN211119896U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |