Digital display

Abstract

The embodiment of the utility model discloses a digital display which comprises a communication circuit, a first connecting piece, a display unit, a key unit, a single chip microcomputer unit, a second connecting piece and a power supply unit. The communication circuit is connected with the EDI power supply through the first connecting piece; the display unit is used for displaying power supply parameters of the EDI power supply; the key unit is used for inputting an adjustment signal of the EDI power supply; the display unit, the key unit, the second connecting piece and the communication circuit are all connected with the single-chip microcomputer unit. The second connecting piece is used for providing a connecting interface for the EDI power supply and the upper computer; the input end of the power supply unit is connected with the EDI power supply, and the output end of the power supply unit is connected with the single-chip microcomputer unit, the key unit, the second connecting piece and the communication circuit. The technical problems that when an existing digital display is used for an EDI power supply, wiring is complex, the function is single, and actual use requirements cannot be met are solved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a digital display. Background Art

[0002] With the advancement of science and technology, digital displays have demonstrated extensive application value in many fields with their excellent display performance, efficient information transmission capabilities and multifunctional adaptability. They have not only promoted the advancement of visual technology, but also profoundly affected work efficiency and quality of life in various fields of society.

[0003] An EDI power supply is a specialized DC power supply designed specifically for electrodeionization (EDI) systems. To ensure proper performance, it's necessary to display relevant EDI power supply parameters. However, there are currently no dedicated digital displays for EDI power supplies. Using other displays to display relevant parameters results in complex wiring and limited functionality, which doesn't meet practical requirements.

[0004] Therefore, providing a digital display dedicated to EDI power supply with simple wiring and diversified functions is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the present application provides a digital display that solves the technical problem that the existing digital display has complex wiring and single function when used for EDI power supply, which does not meet actual usage requirements.

[0006] A first aspect of the present application provides a digital display, comprising: a communication circuit, a first connecting member, a display unit, a key unit, a single chip unit, a second connecting member, and a power supply unit;

[0007] The communication circuit is connected to the EDI power supply via the first connector;

[0008] The display unit is used to display the power supply parameters of the EDI power supply;

[0009] The key unit is used to input the adjustment signal of the EDI power supply;

[0010] The display unit, the button unit, the second connecting member and the communication circuit are all connected to the single chip unit;

[0011] The second connector is used to provide a connection interface between the EDI power supply and the host computer;

[0012] The input end of the power supply unit is connected to the EDI power supply, and the output end is connected to the single chip unit, the key unit, the second connecting member and the communication circuit.

[0013] Further, the communication circuit includes: a transceiver, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor and a transient diode;

[0014] One end of the first resistor is connected to the RXD1 pin of the single chip unit, and the other end is connected to the RO pin of the transceiver;

[0015] One end of the second resistor is connected to the R / T_en pin of the single chip unit, and the other end is connected to the Pins;

[0016] One end of the third resistor is connected to the R / T_en pin of the single chip unit, and the other end is connected to the DE pin of the transceiver;

[0017] One end of the fourth resistor is connected to the TXD1 pin of the single chip unit, and the other end is connected to the DI pin of the transceiver;

[0018] One end of the fifth resistor is connected to the single chip unit and the first end of the first capacitor, and the other end is connected to the first end of the second capacitor and the single chip unit;

[0019] One end of the sixth resistor is connected to the single chip unit and the first end of the transient diode, and the other end is connected to the first connecting member;

[0020] One end of the seventh resistor is connected to the single chip unit and the second end of the transient diode, and the other end is connected to the first connecting member;

[0021] The second end of the first capacitor, the second end of the second capacitor, and the third section of the transient diode are connected and then grounded.

[0022] Furthermore, the transceiver is MAX485, and the transient diode is SDT23C15L02.

[0023] Furthermore, the first connecting member is an RJ45 interface.

[0024] Furthermore, the display unit includes: a voltage display unit and a current display unit;

[0025] The voltage display unit is used to display the power supply voltage of the EDI power supply;

[0026] The current display unit is used to display the power supply current of the EDI power supply.

[0027] Furthermore, the key unit includes: a power button for turning on the EDI power supply, a power button for turning off the EDI power supply, a voltage amplification key for increasing the power supply voltage, a voltage reduction key for reducing the power supply voltage, a current amplification key for increasing the power supply current, and a current reduction key for reducing the power supply current.

[0028] Furthermore, the power supply unit includes: a voltage stabilizer, an eighth resistor, a third capacitor, a fourth capacitor and a fifth capacitor;

[0029] One end of the eighth resistor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded;

[0030] A first end of the third capacitor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded;

[0031] A first end of the fourth capacitor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded;

[0032] A first end of the fifth capacitor is connected to the voltage output end of the voltage regulator, and the other end is grounded.

[0033] Furthermore, the voltage regulator is L78M05.

[0034] Furthermore, the unit machine unit is: STC8H4K32TL.

[0035] Furthermore, the second connecting member is a pin connector;

[0036] The pin connector is connected to the RXD pin and the TXD pin of the single chip unit, and the pin connector is connected to the power supply unit.

[0037] One of the above technical solutions has the following advantages and effects:

[0038] In the above scheme, a digital display comprises: a communication circuit, a first connector, a display unit, a key unit, a single-chip computer unit, a second connector, and a power supply unit; the communication circuit is connected to an EDI power supply via the first connector; the display unit is used to display the power supply parameters of the EDI power supply; the key unit is used to input an adjustment signal for the EDI power supply; the display unit, the key unit, the second connector, and the communication circuit are all connected to the single-chip computer unit; the second connector is used to provide a connection interface between the EDI power supply and a host computer; the input end of the power supply unit is connected to the EDI power supply, and the output end is connected to the single-chip computer unit, the key unit, the second connector, and the communication circuit. In this application, a digital display dedicated to EDI is designed. The digital display can be directly connected to the EDI power supply via the first connector and to the host computer via the second connector, resulting in simple wiring. At the same time, the power supply parameters of the EDI power supply can be flexibly adjusted via the key unit, thereby solving the technical problem that existing digital displays, when used for EDI power supplies, have complex wiring and single functions, and do not meet actual usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 This is a structural block diagram of an embodiment of a digital display provided by an embodiment of the present application;

[0041] Figure 2 is a schematic structural diagram of a communication circuit according to an embodiment of the present application;

[0042] Figure 3 is a structural diagram of a first connecting member in an embodiment of the present application;

[0043] Figure 4 is a schematic structural diagram of a display unit according to an embodiment of the present application;

[0044] Figure 5 Schematic diagram of the structure of the key unit of the embodiment of the present application;

[0045] Figure 6 is a structural diagram of a power supply unit according to an embodiment of the present application;

[0046] Figure 7 It is a structural diagram of the single chip microcomputer unit of an embodiment of the present application;

[0047] Figure 8 It is a structural schematic diagram of the second connecting member of an embodiment of the present application. DETAILED DESCRIPTION

[0048] The embodiment of the present application provides a digital display, which solves the technical problem that the existing digital display has complex wiring and single function when used for EDI power supply, and does not meet actual usage requirements.

[0049] The following will be combined with the accompanying drawings in this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0050] See also Figure 1 , Figure 1 This is a structural block diagram of a first embodiment of a digital display of the present application.

[0051] Depend on Figure 1 It can be seen that the digital display of this embodiment includes: a communication circuit, a first connecting member, a display unit, a key unit, a single chip unit, a second connecting member and a power supply unit;

[0052] The communication circuit is connected to the EDI power supply via the first connector;

[0053] Display unit, used to display power parameters of EDI power supply;

[0054] Key unit, used to input the adjustment signal of EDI power supply;

[0055] The display unit, the key unit, the second connecting member and the communication circuit are all connected to the single chip computer unit;

[0056] The second connector is used to provide a connection interface between the EDI power supply and the host computer;

[0057] The input end of the power supply unit is connected to the EDI power supply, and the output end is connected to the single chip unit, the key unit, the second connecting piece and the communication circuit.

[0058] It is understandable that Figure 1 As shown, Figure 1 The solid lines in the figure represent the interconnections between the components inside the digital display, and the dotted lines represent the connections between the components inside the digital display and the EDI power supply.

[0059] It should be noted that, see Figure 1 and Figure 2 , the communication circuit includes: a transceiver, a resistor R24, a resistor R25, a resistor R26, a resistor R27, a resistor R50, a resistor R52, a resistor R51, a capacitor C27, a capacitor C28 and a transient diode;

[0060] One end of resistor R24 ​​is connected to the RXD1 pin of the microcontroller unit, and the other end is connected to the RO pin of the transceiver;

[0061] ————One end of the resistor R25 is connected to the R / T_en pin of the microcontroller unit, and the other end is connected to the RE pin of the transceiver;

[0062] One end of resistor R26 is connected to the R / T_en pin of the MCU unit, and the other end is connected to the DE pin of the transceiver;

[0063] One end of resistor R27 is connected to the TXD1 pin of the microcontroller unit, and the other end is connected to the DI pin of the transceiver;

[0064] One end of the resistor R50 is connected to the single chip unit and the first end of the capacitor C27, and the other end is connected to the first end of the capacitor C28 and the single chip;

[0065] One end of the resistor R52 is connected to the single chip unit and the first end of the transient diode, and the other end is connected to the first connector;

[0066] One end of the resistor R51 is connected to the single chip unit and the second end of the transient diode, and the other end is connected to the first connector;

[0067] The second end of the capacitor C27, the second end of the capacitor C28, and the third section of the transient diode are connected and then grounded;

[0068] The VCC terminal of the transceiver is connected to the power supply unit.

[0069] Specifically, the resistors R24 , R25 , R26 and R27 are all 1 kΩ, the resistor R50 is 120Ω, and the resistors R52 and R51 are both 33Ω.

[0070] It can be understood that, in this embodiment, the transceiver is MAX485, which provides 485 communication for the display in this embodiment, and the transient diode is SDT23C15L02.

[0071] In this embodiment, if Figure 1 and Figure 3 As shown, the first connector is an RJ45 interface. Figure 1 As shown, one of the pins of the RJ45 is connected to the EDI power supply (12Vcc in the figure represents the EDI power supply).

[0072] In this embodiment, see Figure 1 and Figure 4 , the display unit includes: a voltage display unit and a current display unit;

[0073] Voltage display unit, used to display the power supply voltage of the EDI power supply;

[0074] The current display unit is used to display the power supply current of the EDI power supply.

[0075] It can be understood that the voltage display unit and the current display unit are connected to each other, and the voltage display unit and the current display unit have the same circuit structure.

[0076] The voltage display unit of this embodiment includes: a display, a transistor Q2, a transistor Q4, a transistor Q6, a transistor Q7, a transistor Q8, a resistor R28, a resistor R45, a resistor R42, a resistor R43, and a resistor R44; pins 1 to 5 of the display are directly connected to the single-chip computer unit, pin 6 is connected to the transistor Q2 and the resistor R28 and then to the single-chip computer unit, pin 8 is connected to the transistor Q4 and the resistor R45 and then to the single-chip computer unit, pin 14 is connected to the transistor Q6 and the resistor R42 and then to the single-chip computer unit, pin 11 is connected to the transistor Q7 and the resistor R43 and then to the single-chip computer unit, and pin 10 is connected to the transistor Q8 and the resistor R44 and then to the single-chip computer unit.

[0077] The current display unit of this embodiment includes: a display, a transistor Q3, a transistor Q5, a transistor Q9, a transistor Q10, a transistor Q11, a resistor R29, a resistor R49, a resistor R46, a resistor R47, and a resistor R48; pins 1 to 5 of the display are directly connected to the single-chip computer unit, pin 6 is connected to the transistor Q3 and the resistor R29 and then connected to the single-chip computer unit, pin 8 is connected to the transistor Q5 and the resistor R49 and then connected to the single-chip computer unit, pin 14 is connected to the transistor Q9 and the resistor R46 and then connected to the single-chip computer unit, pin 11 is connected to the transistor Q10 and the resistor R47 and then connected to the single-chip computer unit, and pin 10 is connected to the transistor Q11 and the resistor R48 and then connected to the single-chip computer unit.

[0078] It can be understood that, in this embodiment, the transistors Q2, Q4, Q6, Q7, Q8, Q3, Q5, Q9, Q10, and Q11 are all NPN silicon transistors S8050, and the resistance values ​​of the resistors R28, R45, R42, R43, R44, R29, R49, R46, R47, and R48 are all 1 kΩ.

[0079] Optional, see Figure 1 and Figure 5 The key unit includes: a power button for turning on the EDI power supply, a power button for turning off the EDI power supply, a voltage amplification button for increasing the power supply voltage, a voltage reduction button for reducing the power supply voltage, a current amplification button for increasing the power supply current, and a current reduction button for reducing the power supply current. Specifically, Figure 1As shown, the circuits corresponding to each key have the same structure. Specifically, taking one key as an example, its circuit structure includes: an electronic switch (such as KEY7, KEY8, KEY9, KEY10, KEY11, and KEY12), two resistors (such as resistors R30 and R31, resistors R32 and R33, resistors R34 and R35, resistors R36 and R37, resistors R38 and R39, and resistors R40 and R41), and a capacitor (such as capacitors C29, C30, C31, C32, C33, and C34). One end of the electronic switch is connected to the power supply unit, and the other end is connected to the first ends of the two resistors. The second end of one of the two resistors is connected to the first end of the capacitor and the single-chip microcomputer unit, and the second end of the other resistor is connected to the second end of the capacitor. The resistance value of each resistor in this structure is 1 kΩ.

[0080] In this embodiment, see Figure 1 and Figure 6 , the power supply unit includes: a voltage regulator, a resistor R23, a capacitor C24, a capacitor C25 and a capacitor C26;

[0081] One end of the resistor R23 is connected to the EDI power supply and the voltage input terminal of the voltage regulator, and the other end is grounded;

[0082] A first end of the capacitor C24 is connected to the EDI power supply and the voltage input terminal of the voltage regulator, and the other end is grounded;

[0083] A first end of the capacitor C25 is connected to the EDI power supply and the voltage input terminal of the voltage regulator, and the other end is grounded;

[0084] A first end of the capacitor C26 is connected to the voltage output end of the voltage regulator, and the other end is grounded.

[0085] It should be noted that the voltage regulator in this embodiment is L78M05.

[0086] It can be understood that, in this embodiment, Figure 1 and Figure 7 As shown, the unit is: STC8H4K32TL. Pin 13 of the single chip microcomputer is also connected to capacitor C20, and between pins 10 and 11 are connected resistor R22, capacitors C18, capacitor C19 and device X2. Between pins 15, 16 and 17 are connected capacitors C21, capacitor C22 and capacitor C23.

[0087] In this embodiment, if Figure 1 and Figure 8 As shown, the second connecting member is a pin connector;

[0088] The pin connector is connected to the RXD pin and the TXD pin of the microcontroller unit, and the pin connector is connected to the power supply unit.

[0089] The digital display comprises: a communication circuit, a first connector, a display unit, a key unit, a single-chip microcomputer unit, a second connector, and a power supply unit; the communication circuit is connected to an EDI power supply via the first connector; the display unit is used to display the power supply parameters of the EDI power supply; the key unit is used to input an adjustment signal for the EDI power supply; the display unit, the key unit, the second connector, and the communication circuit are all connected to the single-chip microcomputer unit; the second connector is used to provide a connection interface between the EDI power supply and a host computer; the input end of the power supply unit is connected to the EDI power supply, and the output end is connected to the single-chip microcomputer unit, the key unit, the second connector, and the communication circuit. The present application designs a digital display specifically for EDI. The digital display can be connected to the EDI power supply via the first connector and to the host computer via the second connector, resulting in simple wiring. At the same time, the key unit is used to flexibly adjust the power supply parameters of the EDI power supply, thereby solving the technical problem that existing digital displays, when used for EDI power supplies, have complex wiring and single functions, and do not meet actual usage requirements.

[0090] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0091] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0092] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A digital display, characterized in that: include: A communication circuit, a first connecting member, a display unit, a key unit, a single chip unit, a second connecting member and a power supply unit; The communication circuit is connected to the EDI power supply via the first connector; The display unit is used to display the power supply parameters of the EDI power supply; The key unit is used to input the adjustment signal of the EDI power supply; The display unit, the button unit, the second connecting member and the communication circuit are all connected to the single chip unit; The second connector is used to provide a connection interface between the EDI power supply and the host computer; The input end of the power supply unit is connected to the EDI power supply, and the output end is connected to the single chip unit, the key unit, the second connecting piece and the communication circuit.

2. The digital display according to claim 1, characterized in that: The communication circuit comprises: a transceiver, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor and a transient diode; One end of the first resistor is connected to the RXD1 pin of the single-chip unit, and the other end is connected to the RO pin of the transceiver; One end of the second resistor is connected to the R / T_en pin of the single-chip unit, and the other end is connected to the R / T_en pin of the transceiver. Pins; One end of the third resistor is connected to the R / T_en pin of the single chip unit, and the other end is connected to the DE pin of the transceiver; One end of the fourth resistor is connected to the TXD1 pin of the single-chip unit, and the other end is connected to the DI pin of the transceiver; One end of the fifth resistor is connected to the single-chip unit and the first end of the first capacitor, and the other end is connected to the first end of the second capacitor and the single-chip unit; One end of the sixth resistor is connected to the single chip unit and the first end of the transient diode, and the other end is connected to the first connecting member; One end of the seventh resistor is connected to the single chip unit and the second end of the transient diode, and the other end is connected to the first connecting member; The second end of the first capacitor, the second end of the second capacitor, and the third section of the transient diode are connected and then grounded.

3. The digital display according to claim 2, characterized in that: The transceiver is MAX485, and the transient diode is SDT23C15L02.

4. The digital display according to claim 2, characterized in that: The first connecting piece is an RJ45 interface.

5. The digital display according to claim 1, characterized in that: The display unit includes: a voltage display unit and a current display unit; The voltage display unit is used to display the power supply voltage of the EDI power supply; The current display unit is used to display the power supply current of the EDI power supply.

6. The digital display according to claim 5, characterized in that: The key unit includes: a power button for turning on the EDI power supply, a power button for turning off the EDI power supply, a voltage amplification key for increasing the power supply voltage, a voltage reduction key for reducing the power supply voltage, a current amplification key for increasing the power supply current, and a current reduction key for reducing the power supply current.

7. The digital display according to claim 1, characterized in that: The power supply unit comprises: a voltage stabilizer, an eighth resistor, a third capacitor, a fourth capacitor and a fifth capacitor; One end of the eighth resistor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded; A first end of the third capacitor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded; A first end of the fourth capacitor is connected to the EDI power supply and the voltage input end of the voltage regulator, and the other end is grounded; A first end of the fifth capacitor is connected to the voltage output end of the voltage regulator, and the other end is grounded.

8. The digital display according to claim 7, characterized in that: The voltage regulator is L78M05.

9. The digital display according to any one of claims 1 to 8, characterized in that: The single chip microcomputer unit is: STC8H4K32TL.

10. The digital display according to any one of claims 1 to 8, characterized in that: The second connecting member is a pin connector; The pin connector is connected to both the RXD pin and the TXD pin of the single-chip unit, and the pin connector is connected to the power supply unit.

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