CN210321813U - Table type triangular temperature and humidity LCD electronic clock - Google Patents

Abstract

The utility model discloses a desk type triangular temperature and humidity LCD electronic clock, which comprises a face cover and a bottom cover, wherein the front end of the face cover is sequentially provided with an auxiliary PCB, a backlight plate and an LCD plate; the battery bottom cover is characterized in that a main PCB is additionally arranged at the upper end of the bottom cover, a battery negative piece and a battery positive and negative connecting piece A are additionally arranged on the left side of the upper end of the main PCB, and a battery positive piece and a battery positive and negative connecting piece B are additionally arranged on the right side of the upper end of the main PCB. The desk type triangular temperature and humidity LCD electronic clock can monitor the temperature and the humidity of the environment in real time by accessing the temperature sensor R3 and the humidity sensor R4, and the temperature and the humidity are displayed by the LCD display chip, so that people can know the temperature information and the humidity information of the current environment in real time; by setting five gears L1-L5, the LIGHT-emitting diodes D2, D3 and D4 can be adjusted to the required brightness by pressing a LIGHT button according to the requirement; the whole temperature and humidity of the environment can be displayed in real time, and the brightness is convenient to adjust.

Description

Table type triangular temperature and humidity LCD electronic clock

Technical Field

The utility model relates to an electronic product technical field specifically is a desk-top triangle-shaped humiture LCD electronic clock.

Background

The electronic clock is a timer using digital circuit to display second, minute and time, and compared with traditional mechanical clock, it has the advantages of accurate time, visual display, no mechanical driving device, etc., so that it is extensively used. With the continuous improvement and beautification of the living environment of people, the digital electronic clock can be seen in many occasions; however, the existing electronic clock can only display time, has a single function, and is inconvenient to adjust the displayed brightness, and based on the problems, the desktop triangular temperature and humidity LCD electronic clock is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk-top triangle-shaped humiture LCD electronic clock has the temperature and the humidity that can show the environment in real time, and luminance is convenient for adjust's advantage has solved the problem of the only single display time among the electron among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a desk type triangular temperature and humidity LCD electronic clock comprises a face cover and a bottom cover, wherein an auxiliary PCB, a backlight plate and an LCD plate are sequentially arranged at the front end of the face cover; the battery positive and negative connecting piece A and the battery positive and negative connecting piece B are arranged on the right side of the upper end of the main PCB, AAA batteries are arranged between the battery negative and the battery positive and between the battery positive and negative connecting piece A and the battery positive and negative connecting piece B, and the positive and negative electrodes of the AAA batteries are respectively electrically connected with the battery positive and negative connecting piece A and the battery positive and negative connecting piece B; 2023 batteries are additionally arranged on the main PCB; the upper end of the bottom cover is inserted with a battery box, and the upper end of the battery box is additionally provided with an AAA battery cover; one side of the battery box is inserted with a functional key, the other side of the battery box is provided with a 2023 battery cover, and the 2023 battery cover is additionally arranged on a main PCB (printed circuit board) at the outer side of the 2023 battery; and a control circuit is integrated on the main PCB.

Preferably, the control circuit on the main PCB board comprises a chip U1, the model of the chip U1 is SSOP28, a pin 19 of the chip U1 is sequentially connected in series with a capacitor C6 and a battery BAT1 to be connected back to a pin 23, the input end of the battery BAT1 is connected with the VPD terminal, the output end of the battery BAT1 is connected with the output end of the battery BAT2, the input end of the battery BAT2 is connected in series with a diode D1 to be connected with the input end of the battery BAT1, and the input end of the diode D1 is connected with the VPD2 terminal.

Preferably, the control circuit on the main PCB is externally connected with a key control circuit, the key control circuit comprises a button K1, a button K2, a button K3 and a button K4, the output end of the button K1 is connected with the pin 1 of the chip U1, the output end of the button K2 is connected with the pin 28 of the chip U1, the output end of the button K3 is connected with the pin 27 of the chip U1, the output end of the button K4 is connected with the pin 26 of the chip U1, and the input ends of the button K1, the button K2, the button K3 and the button K4 are all connected with a VPD terminal.

Preferably, the control circuit on the main PCB is externally connected with an LCD driving circuit, the LCD driving circuit includes a chip U2, a SYNCB pin 8 of the chip U2 connected to the pin U1, a WCLK pin 9 of the chip U2 connected to the pin U1, a DATA pin 10 of the chip U2 connected to the pin U1, a VDD pin VPD terminal of the chip U2 for supplying power, pins COM 0-to COM3 of the chip U2 connected to the pins 1-to-4 of the LCD display chip in a one-to-one correspondence, and pins SEG 0-to SEG17 of the chip U2 connected to the pins 5-to-22 of the LCD display chip in a one-to-one correspondence.

Preferably, the control circuit on the main PCB board is externally connected with a display circuit, the display circuit includes a light emitting diode D2, a light emitting diode D3, a light emitting diode D4, a resistor R5, a resistor R6 and an NPN type field effect transistor Q2, a collector of the NPN type field effect transistor Q2 is connected in series with the light emitting diode D2 and the resistor R5 to be connected with a VPD terminal for power supply, the light emitting diode D3 and the light emitting diode D4 are both connected in parallel with two ends of the light emitting diode D2, and a base of the NPN type field effect transistor Q2 is connected in series with a resistor R6 to a pin 18 of the chip U1.

Preferably, a buzzer circuit is externally connected to the control circuit on the main PCB, the buzzer circuit comprises a buzzer U4, a resistor R7 and an NPN-type field-effect transistor Q3, a collector of the NPN-type field-effect transistor Q3 is connected to an output end of the buzzer U4, an input end of the buzzer U4 is connected to the VPD terminal for supplying power, an emitter of the NPN-type field-effect transistor Q3 is grounded, and a base of the NPN-type field-effect transistor Q3 is connected in series with the resistor R7 and a pin 17 of the chip U1.

Preferably, the control circuit on the main PCB is externally connected with a temperature and humidity circuit, the temperature and humidity circuit includes a temperature sensor R3, a humidity sensor R4, a capacitor C7 and a resistor R8, an input end of the temperature sensor R3 is connected to a pin 6 of the chip U1, an input end of the humidity sensor R4 is connected to a pin 7 of the chip U1, an output end of the temperature sensor R3 and an output end of the humidity sensor R4 are connected to an input end of the resistor R8, the input end of the capacitor C7 and a pin 5 connected to the chip U1, and an output end of the resistor R8 is connected to an output end of the capacitor C7 and then grounded.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the desk type triangular temperature and humidity LCD electronic clock can monitor the temperature and the humidity of the environment in real time by accessing the temperature sensor R3 and the humidity sensor R4, and transmits signals to the chip U1, and the chip U1 processes the signals and outputs the signals to be displayed by the LCD display chip, so that a wearer can know the temperature information and the humidity information of the current environment in real time; the chip U1 controls the buzzer U4 to buzz, and the buzzer U4 is used as an alarm clock to prompt personnel; by setting five gears L1-L5, the LIGHT-emitting diode D2, the LIGHT-emitting diode D3 and the LIGHT-emitting diode D4 can be adjusted to the required brightness by pressing the LIGHT button as required, and after the brightness is adjusted to the required brightness, the LIGHT button is pressed for 3 seconds to quit, the current time is displayed, and the current temperature and humidity are displayed; the whole temperature and humidity of the environment can be displayed in real time, and the brightness is convenient to adjust.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a main control circuit diagram of the present invention;

FIG. 3 is a circuit diagram of the key control circuit of the present invention;

FIG. 4 is a connection diagram of the LCD driving circuit and the LCD display chip of the present invention;

FIG. 5 is a circuit diagram of the present invention;

FIG. 6 is a circuit diagram of the buzzer of the present invention;

fig. 7 is the circuit diagram of the temperature and humidity detection of the present invention.

In the figure: 1. a face cover; 2. a bottom cover; 3. an auxiliary PCB board; 4. a backlight plate; 5. an LCD panel; 6. a main PCB board; 7. a negative battery; 8. a positive and negative battery connecting piece A; 9. a battery positive sheet; 10. a battery positive and negative connecting sheet B; 11. a AAA battery; 12. 2023 a battery; 13. a battery box; 14. AAA battery cover; 15. function keys; 16. 2023 battery cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a desktop triangular temperature and humidity LCD electronic clock comprises a surface cover 1 and a bottom cover 2, wherein an auxiliary PCB 3, a backlight plate 4 and an LCD plate 5 are sequentially mounted at the front end of the surface cover 1; the upper end of the bottom cover 2 is additionally provided with a main PCB 6, the left side of the upper end of the main PCB 6 is additionally provided with a battery negative piece 7 and a battery positive and negative connecting piece A8, the right side of the upper end of the main PCB 6 is additionally provided with a battery positive piece 9 and a battery positive and negative connecting piece B10, AAA batteries 11 are respectively additionally arranged between the battery negative piece 7 and the battery positive piece 9 and between the battery positive and negative connecting piece A8 and the battery positive and negative connecting piece B10, and the positive and negative poles of the AAA batteries 11 are respectively electrically connected with the battery positive and negative connecting piece A8 and the battery positive and negative connecting piece B10; 2023 batteries 12 are additionally arranged on the main PCB 6; a battery box 13 is inserted at the upper end of the bottom cover 2, and an AAA battery cover 14 is additionally arranged at the upper end of the battery box 13; a functional key 15 is inserted into one side of the battery box 13, a 2023 battery cover 16 is arranged on the other side of the battery box 13, and the 2023 battery cover 16 is additionally arranged on the main PCB 6 outside the 2023 battery 12; the main PCB 6 has a control circuit integrated thereon.

Referring to fig. 2, the control circuit on the main PCB 6 includes a chip U1, the model of the chip U1 is SSOP28, a pin 19 of the chip U1 is sequentially connected in series with a capacitor C6 and a battery BAT1 connected back to a pin 23, an input end of the battery BAT1 is connected to a VPD terminal, an output end of the battery BAT1 is connected to an output end of the battery BAT2, an input end of the battery BAT2 is connected in series with a diode D1 connected to an input end of the battery BAT1, an input end of the diode D1 is connected to a battery BAT2 connected to a VPD2 terminal to be used as a backup battery, the accessed backup battery plays a role in power down protection, so that when power is cut off, current time and stored parameters are memorized, that a built-in battery retention time display program runs; the chip U1 is used as a control chip for processing the received signals and sending control signals to control the operation of each access circuit.

Referring to fig. 3, a key control circuit is externally connected to the control circuit on the main PCB 6, the key control circuit includes a button K1, a button K2, a button K3 and a button K4, an output terminal of the button K1 is connected to the pin 1 of the chip U1, an output terminal of the button K2 is connected to the pin 28 of the chip U1, an output terminal of the button K3 is connected to the pin 27 of the chip U1, an output terminal of the button K4 is connected to the pin 26 of the chip U1, input terminals of the button K1, the button K2, the button K3 and the button K4 are all connected to a VPD terminal, the button K1 is a set button, the button K2 is an add-1 button, the button K3 is a subtract-1 button, the button K4 is a LIGHT button, and when the LIGHT button is pressed for 3 seconds to enter the set.

Referring to fig. 4, the control circuit on the main PCB 6 is externally connected to an LCD driving circuit, which includes a chip U2, a SYNCB pin of the chip U2 connected to a pin 8 of the chip U1, a WCLK pin of the chip U2 connected to a pin 9 of the chip U1, a DATA pin of the chip U2 connected to a pin 10 of the chip U1, a VDD pin of the chip U2 connected to a VPD terminal for power supply, pins COM 0-to COM3 of the chip U2 connected to pins 1-4 of the LCD display chip in a one-to-one correspondence, and pins SEG0-SEG17 of the chip U2 connected to pins 5-22 of the LCD display chip in a one-to-one correspondence; the LCD driving circuit and the chip U1 send driving signals to the LCD driving circuit through the chip U1, the signals are driven by the LCD driving circuit and then transmitted to the LCD display chip connected to the LCD driving circuit, and the LCD display chip works to display information.

Referring to fig. 5, the control circuit on the main PCB 6 is externally connected with a display circuit, the display circuit includes a light emitting diode D2, a light emitting diode D3, a light emitting diode D4, a resistor R5, a resistor R6 and an NPN fet Q2, a collector of the NPN fet Q2 is connected in series with the light emitting diode D2 and the resistor R5 and connected to the VPD terminal for power supply, the light emitting diode D3 and the light emitting diode D4 are both connected in parallel with two ends of the light emitting diode D2, a base of the NPN fet Q2 is connected in series with the resistor R6 and connected to the pin 18 of the chip U1, and the light emitting diodes D2, D3 and D4 emit light to illuminate the inside of the front cover 1.

Referring to fig. 6, a buzzer circuit is externally connected to the control circuit on the main PCB 6, the buzzer circuit includes a buzzer U4, a resistor R7 and an NPN-type field-effect transistor Q3, a collector of the NPN-type field-effect transistor Q3 is connected to an output terminal of the buzzer U4, an input terminal of the buzzer U4 is connected to the VPD terminal for supplying power, an emitter of the NPN-type field-effect transistor Q3 is grounded, a base of the NPN-type field-effect transistor Q3 is connected in series with the resistor R7 and the pin 17 of the chip U1, and the connected buzzer U4 sounds to serve as an alarm clock.

Referring to fig. 7, the control circuit on the main PCB 6 is externally connected to a temperature and humidity circuit, the temperature and humidity circuit includes a temperature sensor R3, a humidity sensor R4, a capacitor C7 and a resistor R8, an input end of the temperature sensor R3 is connected to a pin 6 of the chip U1, an input end of the humidity sensor R4 is connected to a pin 7 of the chip U1, an output end of the temperature sensor R3 and an output end of the humidity sensor R4 are connected to an input end of the resistor R8, the input end of the capacitor C7 and a pin 5 of the chip U1, an output end of the resistor R8 is connected to an output end of the capacitor C7 and then grounded, the temperature sensor R3 and the humidity sensor R4 respectively detect the temperature and humidity of the environment and transmit signals to the chip U1, and the chip U1 processes the signals and then outputs the signals.

In the desk type triangular temperature and humidity LCD electronic clock, a button K1 is a setting button, a button K2 is a plus 1 button, a button K3 is a minus 1 button, a button K4 is a LIGHT button, when the LIGHT button is pressed for 3 seconds to enter setting, the display L5 is bright, the brightness is darkest, at the moment, the LIGHT button is pressed for switching, and when the L1 is displayed, the brightness is brightest by 100%; when the LIGHT button is pressed again and L2 is displayed, the brightness is 80%; when the LIGHT button is pressed again and L3 is displayed, the brightness is 60%; when the LIGHT button is pressed again and L4 is displayed, the brightness is 40%; when the LIGHT button is pressed again and the L5 is displayed, the brightness is the darkest at 20%; through setting five gears L1-L5, the luminance can be adjusted to the required luminance according to the requirement, after the luminance is adjusted to the required luminance, the LIGHT button is pressed for 3 seconds for a long time, the exit is carried out, the current time is displayed, and the current temperature and humidity are displayed.

In summary, the following steps: the desk type triangular temperature and humidity LCD electronic clock can monitor the temperature and the humidity of the environment in real time by accessing the temperature sensor R3 and the humidity sensor R4, and transmits signals to the chip U1, and the chip U1 processes the signals and outputs the signals to be displayed by the LCD display chip, so that a person can know the temperature information and the humidity information of the current environment in real time; the chip U1 controls the buzzer U4 to buzz, and the buzzer U4 is used as an alarm clock to prompt personnel; by setting five gears L1-L5, the LIGHT-emitting diode D2, the LIGHT-emitting diode D3 and the LIGHT-emitting diode D4 can be adjusted to the required brightness by pressing the LIGHT button as required, and after the brightness is adjusted to the required brightness, the LIGHT button is pressed for 3 seconds to quit, the current time is displayed, and the current temperature and humidity are displayed; the whole temperature and humidity of the environment can be displayed in real time, and the brightness is convenient to adjust.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a desk-top triangle-shaped humiture LCD electronic clock, includes face lid (1) and bottom (2), its characterized in that: the front end of the face cover (1) is sequentially provided with an auxiliary PCB (printed circuit board) (3), a backlight plate (4) and an LCD (liquid crystal display) plate (5); the battery is characterized in that a main PCB (6) is additionally arranged at the upper end of the bottom cover (2), a battery negative piece (7) and a battery positive and negative connecting piece A (8) are additionally arranged on the left side of the upper end of the main PCB (6), a battery positive piece (9) and a battery positive and negative connecting piece B (10) are additionally arranged on the right side of the upper end of the main PCB (6), AAA batteries (11) are additionally arranged between the battery negative piece (7) and the battery positive piece (9) and between the battery positive and negative connecting piece A (8) and the battery positive and negative connecting piece B (10), and the positive and negative poles of the AAA batteries (11) are respectively and electrically connected with the battery positive and negative connecting piece A (8) and the battery positive and negative connecting; 2023 batteries (12) are additionally arranged on the main PCB (6); the upper end of the bottom cover (2) is inserted with a battery box (13), and the upper end of the battery box (13) is additionally provided with an AAA battery cover (14); one side of the battery box (13) is inserted with a functional key (15), the other side of the battery box (13) is provided with a 2023 battery cover (16), and the 2023 battery cover (16) is additionally arranged on a main PCB (6) at the outer side of the 2023 battery (12); and a control circuit is integrated on the main PCB (6).

2. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the control circuit on the main PCB (6) comprises a chip U1, the model of the chip U1 is SSOP28, a pin 19 of the chip U1 is sequentially connected with a capacitor C6 in series, a battery BAT1 is connected with a return pin 23, the input end of the battery BAT1 is connected with a VPD terminal, the output end of the battery BAT1 is connected with the output end of the battery BAT2, the input end of the battery BAT2 is connected with a diode D1 in series and connected with the input end of the battery BAT1, and the input end of the diode D1 is connected with a VPD2 terminal.

3. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the control circuit on the main PCB (6) is externally connected with a key control circuit, the key control circuit comprises a button K1, a button K2, a button K3 and a button K4, the output end of the button K1 is connected with a pin 1 of a chip U1, the output end of the button K2 is connected with a pin 28 of a chip U1, the output end of the button K3 is connected with a pin 27 of a chip U1, the output end of the button K4 is connected with a pin 26 of a chip U1, and the input ends of the button K1, the button K2, the button K3 and the button K4 are connected with a VPD terminal.

4. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the control circuit on the main PCB (6) is externally connected with an LCD driving circuit, the LCD driving circuit comprises a chip U2, a SYNCB pin 8 of a chip U2 is connected with a pin 8 of a chip U1, a WCLK pin 9 of the chip U2 is connected with a pin 9 of a chip U1, a DATA pin of a chip U2 is connected with a pin 10 of a chip U1, a VDD pin VPD terminal of the chip U2 is used for supplying power, pins COM0 and COM3 of the chip U2 are connected with pins 1 to 4 of an LCD display chip in a one-to-one correspondence mode, and pins SEG0 and SEG17 of the chip U2 are connected with pins 5 to 22 of the LCD display chip in a one-to-one correspondence mode.

5. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the control circuit on the main PCB (6) is externally connected with a display circuit, the display circuit comprises a light emitting diode D2, a light emitting diode D3, a light emitting diode D4, a resistor R5, a resistor R6 and an NPN field effect transistor Q2, a collector of the NPN field effect transistor Q2 is connected with the light emitting diode D2 in series, a resistor R5 is connected with a VPD terminal for power supply, the light emitting diode D3 and the light emitting diode D4 are connected with two ends of the light emitting diode D2 in parallel, and a base of the NPN field effect transistor Q2 is connected with a resistor R6 in series and connected with a pin 18 of a chip U1.

6. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the control circuit on the main PCB (6) is externally connected with a buzzer circuit, the buzzer circuit comprises a buzzer U4, a resistor R7 and an NPN type field effect transistor Q3, the collector of the NPN type field effect transistor Q3 is connected with the output end of the buzzer U4, the input end of the buzzer U4 is connected with a VPD terminal for power supply, the emitter of the NPN type field effect transistor Q3 is grounded, and the base of the NPN type field effect transistor Q3 is connected with the resistor R7 in series and connected with a pin 17 of the chip U1.

7. The desktop triangular temperature and humidity LCD electronic clock of claim 1, which is characterized in that: the external temperature and humidity circuit of control circuit on main PCB board (6), the temperature and humidity circuit includes temperature sensor R3, humidity transducer R4, electric capacity C7 and resistance R8, temperature sensor R3's input links to each other with chip U1's foot 6, humidity transducer R4's input links to each other with chip U1's foot 7, temperature sensor R3's output and humidity transducer R4's output are connected to resistance R8's input, and be connected to electric capacity C7's input and be connected to chip U1's foot 5, resistance R8's output links to each other the back with electric capacity C7's output and ground connection.

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