CN210780217U

CN210780217U - Multi-path direct current UPS power supply device for self-service equipment

Info

Publication number: CN210780217U
Application number: CN201922330640.XU
Authority: CN
Inventors: 李嘉; 付国良; 张震
Original assignee: Sichuan Changfeng Zhiyuan Technology Co ltd
Current assignee: Sichuan Changfeng Zhiyuan Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-06-16
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a multi-path direct current UPS power supply device for self-service equipment, which comprises a carrier, wherein a power input module, a control circuit and a storage battery pack are arranged on the carrier; the storage battery pack is connected to the control circuit through the charging and discharging module and is used as an uninterruptible power supply; the power input module is connected with the control circuit; the power supply input module is used for rectifying the AC/DC conversion; the control circuit is provided with a controller, the controller is externally connected with a serial communication module, and the serial communication module is used for realizing information interaction and on-off control of the circuit through the controller, so that the problems that the wiring of power supply equipment is complicated and each power supply is difficult to control independently are expected to be optimized.

Description

Multi-path direct current UPS power supply device for self-service equipment

Technical Field

The utility model relates to a power supply unit equipment, concretely relates to self-service is multichannel direct current UPS power supply unit for equipment.

Background

The self-service equipment used at present is provided with a plurality of different functional elements, different power supplies are needed among the functional elements, such as an express storage cabinet, an article storage cabinet and the like, the functional elements all need a plurality of power supplies, the voltage of the power supplies needed by the different elements are different, for example, the voltage needed by the industrial personal computer for supplying power is generally a 12V power supply, the voltage needed by the exchanger for supplying power is generally a 5V power supply, the voltage needed by the lock control main board for supplying power is generally a 24V power supply, and the power supplies are required to have a power-off protection function, so that the general power-off protection is realized through a UPS uninterrupted power supply.

Specifically, the UPS is a device for storing energy, typically a battery; the UPS is used as a stable output power source by connecting the AC 220V input end in series, and the output end of the UPS is connected in parallel to a multi-path AC adapter to obtain a plurality of power sources with different voltages, however, although the power supply side can realize that one power source supplies a plurality of devices, the power supply side has the defects of complex wiring, large device volume, difficulty in independently controlling each power source and the like; therefore, how to integrate the devices is worth studying that each circuit is controlled independently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-service for equipment multichannel direct current UPS power supply unit to it is complicated to expect to optimize the power supply unit wiring, and each way power is difficult for controlled problem alone.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a multi-path direct current UPS power supply device for self-service equipment comprises a carrier, wherein a power input module, a control circuit and a storage battery pack are arranged on the carrier; the storage battery pack is connected to the control circuit through the charging and discharging module and is used for being used as an uninterruptible power supply; the control circuit is internally provided with a controller which is externally connected with a serial communication module and is used for realizing information interaction and switch control of the circuit through the controller by the serial communication module.

Preferably, the power input module includes an ACDC circuit, the ACDC circuit is provided with a field coil for forming a variable voltage by the field coil, the ACDC circuit is provided with a voltage stabilizing chip U1 and a transformer T1, and the transformer T1 is connected to the voltage stabilizing chip U1 for ensuring current stabilization by the voltage stabilizing chip U1 cooperating with the transformer T1.

The further technical scheme is that the model of the voltage stabilizing chip U1 is FAN 6755.

Preferably, the control circuit is provided with a current stabilizing circuit for stabilizing the output current, and the control circuit is further connected to the charge/discharge module for inputting/outputting the current of the storage battery pack by the charge/discharge module.

Preferably, the output end of the control circuit is provided with an output circuit 1, an output circuit 2 and an output circuit 3 which are connected in parallel, and the output circuit 1, the output circuit 2 and the output circuit 3 are used for outputting different direct current voltages respectively so as to supply the direct current voltages to a plurality of electric devices.

Preferably, the controller is an STC12C5a60S2 single chip microcomputer, and is used for being accessed to the serial port communication module by the STC12C5a60S2 single chip microcomputer, and a feedback circuit is arranged on one side of the STC12C5a60S2 single chip microcomputer and is used for being accessed to the STC12C5a60S2 single chip microcomputer by the feedback circuit.

Preferably, the serial communication module comprises a serial communication circuit, wherein a chip MAX232 is arranged in the serial communication circuit and used for being connected to the single chip microcomputer through the chip MAX232, an output interface is connected to one side of the chip MAX232 and used for being connected with the equipment end through the output interface, and the purpose is to transmit information such as the electric quantity, the residual working time and the working state of the storage battery through the serial communication module.

Compared with the prior art, the beneficial effects of the utility model are one of following at least:

the utility model discloses power input module at first can directly utilize the input of alternating current 220V to change the direct current of constant voltage, very big convenience of customers uses.

The utility model discloses utilize the controller to control a plurality of power supply path in to control circuit to the independent control of one way power avoids the defect that needs of each unit launched in step.

The utility model discloses a control circuit is the input storage battery of sound respectively, realizes UPS uninterrupted power source's function, and its wiring is simple, and the circuit of control circuit output is independent, still utilizes serial ports communication module to realize the signal interaction, more does benefit to control.

Drawings

Fig. 1 is a structural distribution diagram of the present invention.

Fig. 2 is a schematic diagram of the ACDC circuit of fig. 1.

Fig. 3 is a schematic diagram of the control circuit of fig. 1.

Fig. 4 is the schematic diagram of the serial port communication module of the present invention.

Fig. 5 is a schematic diagram of the feedback circuit of fig. 1.

Fig. 6 is a schematic diagram of the output circuit 1 of fig. 1.

Fig. 7 is a schematic diagram of the output circuit 2 of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, an embodiment of the present invention is a multi-path dc UPS power supply device for self-service equipment, which includes a carrier 1, wherein the carrier 1 may be an existing printed circuit board, and may be an engineering board for assembling a plurality of circuit boards.

The carrier 1 is provided with a power input module, a control circuit and a storage battery pack; the storage battery pack is connected to the control circuit through the charging and discharging module and is used as an uninterruptible power supply; specifically, the storage battery can be used for storing electric energy of the UPS system, and the capacity of the storage battery determines the time of emergency power supply; when the mains supply voltage is stable, the electric energy passes through the control circuit through the input module and is stored in the storage battery pack; when the commercial power is cut off or abnormally fluctuates, the storage battery pack provides power for the rear-end load equipment.

The power input module can be the existing AC commercial power voltage stabilizer, and the UPS supplies the commercial power to the load after stabilizing the voltage when the 220V alternating current is input normally by the power input module; the power input module is connected with the control circuit; the power supply input module is used for rectifying the AC/DC conversion; the main functions of the power input module under the power supply condition are voltage stabilization and electric wave interference prevention, an external alternating current power supply is converted into direct current, a controller is arranged in the control circuit, the controller is externally connected with a serial communication module, and the serial communication module is used for realizing information interaction and on-off control of the circuit through the controller.

Based on the above embodiment, referring to fig. 2, another embodiment of the present invention is that the power output module includes an ACDC circuit, the ACDC circuit is provided with an excitation coil for forming a variable voltage by the excitation coil, and the excitation coil generates an alternating magnetic field to induce a potential in a secondary coil, which is used in conjunction with a transformer to change the voltage.

The ACDC circuit is provided with a voltage stabilizing chip U1 and a transformer T1, which are used to ensure current voltage stabilization by the voltage stabilizing chip U1 cooperating with the transformer T1, wherein the transformer T1 uses the electromagnetic induction principle, and is composed of an iron core and a coil, and can be divided into a primary side coil and a secondary side coil, wherein the primary side inputs voltage, and the secondary side outputs induced voltage, thereby performing electric energy transmission. The secondary side can provide different voltage outputs and has the functions of boosting and reducing voltage, thereby realizing the requirement of voltage change.

Further, the specific model of the voltage stabilization chip U1 is FAN6755, where FAN6755 is a highly integrated PWM controller, which can be used for frequency hopping and constant power limitation of a transformer, has the advantage of low operating current, can reduce load power supply to the maximum, and cooperates with the transformer T1 to realize voltage stabilization control, specifically, after 220V ac passes through the ACDC circuit, the transformer converts the ac into stable low voltage ac, and then the low voltage ac is rectified and filtered by a bridge to obtain dc voltage.

Based on the above embodiment, referring to fig. 3, another embodiment of the present invention is that a current stabilizing circuit is disposed in the control circuit for stabilizing the output current by the control circuit, and the control circuit is connected to connect the charging and discharging module for inputting/outputting the current of the storage battery pack by the charging and discharging module; the charging/discharging module is an existing module, for example, a charging circuit made of a conventional BQ24133 is used, and the charging/discharging module is connected to the control circuit through batdrv to perform constant voltage.

Specifically, the direct current voltage output by the ACDC circuit is unstable and is easy to change along with the magnitude of alternating current voltage and load current, wherein a transistor is arranged in the current stabilizing circuit to form a composite adjusting tube, the direct current voltage of the composite adjusting tube is added to the input end of the composite adjusting tube, and a base electrode bias resistor of the composite adjusting tube provides conducting voltage for the adjusting tube; after the emitter is conducted, the voltage is output, the output voltage is taken out by the sampling circuit and then is sent to the base electrode of the comparison amplifying tube, after the output voltage is compared with the reference voltage, the collector electrode is used for outputting error control voltage to control the conduction depth of the adjusting tube, and the voltage output by the emitter of the adjusting tube is stabilized within the range of a specified value.

Based on the above embodiment, referring to fig. 6 and 7, another embodiment of the present invention is that the control circuit output end is provided with an output circuit 1, an output circuit 2, and an output circuit 3, and the output circuit 1, the output circuit 2, and the output circuit 3 respectively output different dc voltages to supply to a plurality of electric devices.

The output circuit 1, the output circuit 2 and the output circuit 3 are divided into independent DCDC circuits; the input end of the output circuit 1, the input end of the output circuit 2 and the input end of the output circuit 3 are all connected with the output end of the ACDC circuit.

The output circuit 1, the output circuit 2 and the output circuit 3 can be set to different working voltages required by users for the users to use; for example, 12V output, 5V output, 24V output; the on-off of the three power supplies are respectively controlled by the user through the single chip microcomputer.

Based on the above embodiment, referring to fig. 5, another embodiment of the present invention is that the controller is an STC12C5a60S2 chip for being accessed to the serial port communication module by STC12C5a60S2, and a feedback circuit is arranged on one side of the STC12C5a60S2 single chip microcomputer for being accessed to the STC12C5a60S2 single chip microcomputer by the feedback circuit; the feedback circuit is an existing circuit and is used for comparing an input end of a controller with an input signal and controlling output by using an effective input signal obtained by comparison, and the principle is that in a basic amplifying circuit, active devices such as transistors and the like have signal one-way transmissibility, an amplified signal is output after being input into the amplifying circuit from the input end, and the input signal has one-way control over the output signal; because the circuit has a path, a part of the output signal is fed back to the input end of the amplifier and is superposed with the external input signal to generate a net input signal of the basic amplifying circuit, thereby realizing the control of the output signal on the input and forming the feedback.

Specifically, STC12C5A60S2 is adopted because serial port programs of the single chip microcomputer are written around, obviously, the single chip microcomputer has low requirements on development equipment and is beneficial to development and correction, a special reset circuit is integrated in the single chip microcomputer, 2-path PWM and 8-path high-speed 10-bit A/D conversion are realized, the STC12LE5A60S2 working voltage is 5.5-3.3V, the driving capability of each I/O port can reach 20mA, and the single chip microcomputer has the use advantages that a special programmer is not needed, a special simulator is not needed, and user programs can be directly downloaded through a serial port (P3.0/P3.1) external serial port communication module.

Based on the above embodiment, referring to fig. 4, another embodiment of the present invention is that the serial communication module includes a serial communication circuit, the serial communication circuit is provided with a chip MAX232 for accessing the single chip microcomputer via the chip MAX232, and one side of the chip MAX232 is accessed to an output interface for connecting the output interface to the device side; the output interface is an output standard RS232 interface, and the single chip microcomputer is connected to one side of the chip MAX232 so as to realize that the serial port communication module is used for transmitting information such as the electric quantity of the storage battery, the residual working time, the working state and the like; wherein, a switching value signal is provided to a client through a relay J2 so as to control the system of a user to be turned on and off.

The MAX232 chip is a single power supply level conversion chip designed for RS-232 standard serial ports, and is powered by a +5v single power supply, and the power consumption can be reduced to be within 5uW due to a low-power-consumption turn-off mode, so that the device is particularly suitable for a battery power supply system; and the use of the chip does not require external components, thus greatly saving the area required by the carrier.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a self-service equipment is with multichannel direct current UPS power supply unit, includes carrier (1), its characterized in that: the carrier (1) is provided with a power input module, a control circuit and a storage battery pack;

the storage battery pack is connected to the control circuit through the charging and discharging module and is used as an uninterruptible power supply;

the power input module is connected with the control circuit; the power supply input module is used for rectifying the AC/DC conversion;

the control circuit is internally provided with a controller which is externally connected with a serial communication module and used for realizing information interaction and on-off control of the circuit through the controller by the serial communication module.

2. The multi-path direct current UPS power supply device for self-service equipment according to claim 1, characterized in that: the power input module comprises an ACDC circuit, and the ACDC circuit is provided with an excitation coil and is used for forming variable voltage by the excitation coil;

the ACDC circuit is provided with a voltage stabilizing chip U1 and a transformer T1, wherein the transformer T1 is connected to the voltage stabilizing chip U1 and is used for ensuring current voltage stabilization by matching the voltage stabilizing chip U1 with the transformer T1.

3. The multi-path direct current UPS power supply device for self-service equipment according to claim 2, characterized in that: the model of the voltage stabilizing chip U1 is FAN 6755.

4. The multi-path direct current UPS power supply device for self-service equipment according to claim 1, characterized in that: the control circuit is internally provided with a current stabilizing circuit and is used for stabilizing output current by the control circuit, and the control circuit is also connected to the charge and discharge module and is used for inputting/outputting the current of the storage battery pack by the charge and discharge module.

5. The multi-path direct current UPS power supply device for self-service equipment according to claim 1, characterized in that: the output end of the control circuit is provided with an output circuit 1, an output circuit 2 and an output circuit 3 which are connected in parallel, and the output circuit 1, the output circuit 2 and the output circuit 3 are used for outputting different direct current voltages respectively so as to supply a plurality of electric devices.

6. The multi-path direct current UPS power supply device for self-service equipment according to claim 1, characterized in that: the controller is an STC12C5A60S2 single chip microcomputer and is used for being accessed to the serial port communication module by the STC12C5A60S2 single chip microcomputer, and a feedback circuit is arranged on one side of the STC12C5A60S2 single chip microcomputer and is used for being accessed to the STC12C5A60S2 single chip microcomputer by the feedback circuit.

7. The multi-path direct current UPS power supply device for self-service equipment according to claim 1, characterized in that: the serial communication module is used for transmitting information such as the electric quantity, the residual working time and the working state of the storage battery, and comprises a chip MAX232, wherein one side of the chip is connected with the single chip microcomputer, and the other side of the chip is connected with an output standard RS232 interface and is connected with the equipment end.