CN215419073U - Integrated miniature direct current screen - Google Patents
Integrated miniature direct current screen Download PDFInfo
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- CN215419073U CN215419073U CN202121613003.4U CN202121613003U CN215419073U CN 215419073 U CN215419073 U CN 215419073U CN 202121613003 U CN202121613003 U CN 202121613003U CN 215419073 U CN215419073 U CN 215419073U
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- direct current
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- monitoring unit
- cabinet body
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Abstract
The utility model discloses an integrated micro direct current screen, which comprises a cabinet body, a charging module, a monitoring unit, a switch, an alternating current relay and a battery pack, wherein the charging module and the monitoring unit are arranged at the upper part of the cabinet body, a mounting plate is arranged at the middle part of the cabinet body, the switch comprises an alternating current input switch, a direct current output switch and a battery switch, the alternating current input switch, the alternating current relay, the direct current output switch and the battery switch are arranged on the mounting plate, the battery pack is arranged at the lower part of the cabinet body, the battery packs are connected in series by battery wires to achieve working voltage, and the total positive pole and the total negative pole of the battery wires are connected to the lower end of the battery switch and are connected with the charging module through the battery switch.
Description
Technical Field
The utility model relates to the technical field of direct-current power supply screens, in particular to an integrated miniature direct-current screen.
Background
The direct current screen is the abbreviation of a direct current operation power supply system and is the basis for control and protection of a contemporary power system, and the direct current screen supplies power to loads such as instruments, meters, relay protection, emergency lighting and the like in a switch opening and closing and a secondary circuit of a power distribution system, can ensure that the operation power supply can still be provided for equipment when the system fails, ensures that a protection device can reliably act, and can also provide an emergency power supply for a transformer substation when the system is in power failure for a short time. The existing direct current screen has the problems of low integration level, large volume, heaviness, inflexible installation, high price and the like, and is not suitable for users such as small-sized switch stations, small-sized user transformer substations, small-sized 10kV transformer substations and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated micro direct current screen which is small in size, simple and attractive in structure, convenient to install, flexible in modular matching and high in cost performance, is suitable for small-sized switch stations, small-sized user transformer stations and small-sized 10kV transformer stations, and is widely applied to actual production and life.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model discloses an integrated micro direct current screen, which comprises a cabinet body, a charging module, a monitoring unit, a switch, an alternating current relay and a battery pack, wherein the charging module and the monitoring unit are arranged at the upper part of the cabinet body, a mounting plate is arranged at the middle part of the cabinet body, the switch comprises an alternating current input switch, a direct current output switch and a battery switch, the alternating current input switch, the alternating current relay, the direct current output switch and the battery switch are arranged on the mounting plate, the battery pack is arranged at the lower part of the cabinet body, the battery packs are connected in series through battery lines to achieve working voltage, and the total positive pole and the total negative pole of the battery lines are connected to the lower end of the battery switch and are connected with the charging module through the battery switch.
Further, still include the bracket unit, the bracket unit is fixed on the upper portion of the cabinet body, and charging module and monitoring unit are fixed on the bracket unit.
Furthermore, shutter heat dissipation holes are formed in the upper portion and two sides of the cabinet body.
Further, the bottom of the cabinet body is provided with a base, 2 upper hanging pieces are arranged above the rear portion of the cabinet body, and 2 lower hanging pieces are arranged below the rear portion of the cabinet body.
Furthermore, an external alternating current input power supply enters the alternating current relay after passing through the 2 alternating current input switches, after the alternating current relay performs main and standby switching, 1 path of alternating current power supply is output to the alternating current input terminal of the bracket unit, the alternating current input terminal not only provides the alternating current power supply for the charging module, but also detects alternating current voltage, and when the alternating current voltage is abnormal, the monitoring unit gives an alarm according to the measured alternating current voltage.
Further, the charging module and the monitoring unit respectively correspond to an alternating current input and a direct current output on the bracket unit and are connected by a short wire.
Further, a direct current output terminal is arranged on the bracket unit and outputs direct current to a direct current output switch and a battery switch, and the direct current output switch is divided into a control female switch and a closing female switch which are respectively connected with a control female load and a closing female load.
Furthermore, the monitoring unit gives an alarm according to the measured alternating-current voltage, the charging module rectifies the input alternating-current into direct-current, the direct-current is output to the direct-current output switch and the battery switch from the direct-current output terminal, and meanwhile power is supplied to the monitoring unit.
Further, a shunt is arranged on the bracket unit, the monitoring unit is respectively communicated with the upper computer and the lower computer through two 485 serial ports, the monitoring unit measures direct current load current and battery pack charging current from the shunt, alarms when the direct current load current is over-current, and performs uniform and floating charging control on the battery pack according to the measured battery pack charging current;
the monitoring unit detects the direct current voltage from the direct current output terminal and carries out controlled alarm operation on the whole direct current screen system according to the measured direct current voltage.
The utility model has the beneficial effects that:
the utility model has the characteristics of small volume, simple and beautiful structure, convenient installation, flexible modular collocation, high cost performance and the like, and can be installed on the ground or in a suspension way. The method is suitable for small-sized switch stations, small-sized user transformer stations and small-sized 10kV transformer stations, and has wide application in actual production and life.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the figure, the utility model discloses an integrated micro direct current screen, which comprises a cabinet body 1, a charging module 2, a monitoring unit 3, a switch, an alternating current relay 7 and a battery pack 8, wherein the charging module 2 and the monitoring unit 3 are installed on the upper part of the cabinet body 1, an installation plate 9 is installed in the middle of the cabinet body 1, the switch comprises an alternating current input switch 4, a direct current output switch 5 and a battery switch 6, the alternating current input switch 4, the alternating current relay 7, the direct current output switch 5 and the battery switch 6 are installed on the installation plate 9, the battery pack 8 is placed on the lower part of the cabinet body 1, the battery packs 8 are connected in series through battery lines 15 to achieve working voltage, and the total positive pole and the total negative pole of the battery lines 15 are connected to the lower end of the battery switch 6 and are connected with the charging module through the battery switch.
In an embodiment of the present invention, the present invention further includes a bracket unit 10, the bracket unit 10 is fixed on the upper portion of the cabinet 1, and the charging module 2 and the monitoring unit 3 are fixed on the bracket unit 10. Therefore, hot plug and replacement of the charging module and the monitoring unit are realized, and subsequent equipment maintenance is facilitated.
In an embodiment of the present invention, the cabinet 1 is provided with louvered holes 24 at the top and both sides thereof. The louver radiating holes are used for radiating heat of the whole direct current screen. During heat dissipation, air enters from the bottom, blows to the radiator inside the charging module 2 and the monitoring unit 3 after passing through the fan inside, and then takes heat on the radiator out to be discharged from the upper portion of the cabinet body 1, and the heat dissipation energy in time enables the whole direct current screen to be at a proper working temperature.
In an embodiment of the utility model, the bottom of the cabinet body 1 is provided with the base 21, the floor standing type. The direct current screen can be used in places needing to be hung, so that the direct current screen provided by the utility model can be used on the ground or hung, and different occasions needing different requirements are met.
In an embodiment of the present invention, an external ac input power enters the ac relay 7 through the 2 ac input switches 4, after the ac relay 7 performs the main and standby switching, 1 ac power is output to the ac input terminal 11 of the cradle unit, the ac input terminal 11 not only provides the ac power to the charging module 2, but also detects the ac voltage, and when the ac voltage is abnormal, the monitoring unit 3 alarms according to the measured ac voltage.
In an embodiment of the present invention, the charging module 2 and the monitoring unit 3 correspond to an ac input and a dc output of the cradle unit 10, respectively, and are connected by a short wire.
In an embodiment of the present invention, the bracket unit 10 is provided with a dc output terminal 12, and the dc output switch 5 is divided into a control bus switch and a closing bus switch, which are respectively connected to a control bus load and a closing bus load. The battery switch is connected with the battery pack 8 through a battery wire 15, and the battery pack can be charged and discharged.
In an embodiment of the present invention, the monitoring unit 3 performs an alarm based on the measured ac voltage, and the charging module 2 rectifies the input ac power into dc power and then outputs the dc power from the dc output terminal 12 to the dc output switch 5 and the battery switch 6 while supplying power to the monitoring unit 3.
In one embodiment of the utility model, the bracket unit 10 is provided with a shunt 13, the monitoring unit 3 is respectively communicated with an upper computer and a lower computer through two 485 serial ports, the monitoring unit 3 measures direct current load current and battery pack charging current from the shunt 13, alarms when the direct current load current is over-current, and performs uniform and floating charge control on the battery pack according to the measured battery pack charging current;
the monitoring unit 3 detects the direct current voltage from the direct current output terminal, and performs the alarm operation of controlling the whole direct current screen system according to the measured direct current voltage.
The monitoring unit 3 can send the remote measurement and remote signaling quantity of the whole direct current screen to an upper computer central control system, and can communicate with lower computers such as a battery pack inspection unit, a branch insulation unit, a switching value unit and the like which are selected and matched according to technical requirements, read required data from the lower computers and perform corresponding control. The monitoring unit 3 is internally provided with a voltage reduction silicon chain, so that the combined voltage output by the charging module can be reduced to a more stable controlled voltage, and the voltage is output to the direct current output switch 5 through the direct current output terminal 12.
According to the utility model, two external alternating current power supplies enter the alternating current relay after passing through the alternating current input switch, and enter the charging module after being switched into one path, the charging module rectifies and outputs direct current, one path is connected to the direct current output switch to supply power to a rear load, and the other path is connected to the battery switch to charge the battery pack.
The working principle is as follows: an external alternating current input power supply enters an alternating current relay 7 after passing through 2 alternating current input switches 4, after the alternating current contactor 7 performs main and standby switching, 1 path of alternating current power supply is output to an alternating current input terminal 11 of a bracket unit 10, the alternating current input terminal 11 not only provides the alternating current power supply for the charging module 2, but also detects alternating current voltage at the same time, and when the alternating current voltage is abnormal, the monitoring unit 3 can give an alarm according to the measured alternating current voltage. The charging module 2 rectifies the input ac power into dc power, which is output from the dc output terminal 12 to the dc output switch 5 and the battery switch 6, while supplying power to the monitoring unit 3. The monitoring unit 3 detects direct-current voltage from the direct-current output terminal 12, performs alarm operation for controlling the whole direct-current screen according to the measured direct-current voltage, measures direct-current load current and battery pack charging current from the 2 shunts 13, alarms when the direct-current load current is overcurrent, and performs uniform and floating charge control on the battery pack according to the measured battery pack charging current. The monitoring unit 3 can communicate with an upper computer and a lower computer respectively through 2 communication terminals 14, can send the telemetering and remote signaling quantity of the whole direct current screen to a central control system of the upper computer, can communicate with the battery pack inspection unit, a branch insulation unit, a switching value unit and other lower computers which are selected according to technical requirements, reads required data from the lower computers, and performs corresponding control. The monitoring unit 3 is internally provided with a voltage reduction silicon chain, so that the combined voltage output by the charging module can be reduced to a more stable controlled voltage, and the voltage is output to the direct current output switch 5 through the direct current output terminal 12.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a miniature direct current screen of integral type, a serial communication port, the intelligent cabinet temperature adjusting device comprises a cabinet body, the module of charging, the monitoring unit, a switch, exchange relay and group battery, the upper portion at the cabinet body is installed to module of charging and monitoring unit, the mid-mounting of the cabinet body has the mounting panel, the switch includes AC input switch, DC output switch and battery switch, install AC input switch on the mounting panel, exchange relay, DC output switch and battery switch, the lower part of the cabinet body is placed to the group battery, establish ties in order to reach operating voltage with the battery line between the group battery, the total positive pole and the total negative pole of battery line connect in the lower extreme of battery switch, connect through battery switch and the module of charging.
2. The integrated micro direct current screen as claimed in claim 1, further comprising a bracket unit fixed on the upper portion of the cabinet body, wherein the charging module and the monitoring unit are fixed on the bracket unit.
3. The integrated micro dc screen of claim 1, wherein the cabinet has louvered holes at the top and sides.
4. The integrated micro direct current screen as claimed in claim 1, wherein the bottom of the cabinet body is provided with a base, 2 upper hanging pieces are arranged above the rear portion of the cabinet body, and 2 lower hanging pieces are arranged below the rear portion of the cabinet body.
5. The integrated micro-dc panel of claim 2, wherein an external ac input power is supplied to the ac relay via 2 ac input switches, the ac relay switches between main and standby modes to output 1 ac power to the ac input terminals of the cradle unit, the ac input terminals provide ac power to the charging module and detect ac voltage, and the monitoring unit alarms according to the measured ac voltage when the ac voltage is abnormal.
6. The integrated micro dc panel of claim 2, wherein the charging module and the monitoring unit are respectively corresponding to the ac input and the dc output of the cradle unit and connected by short wires.
7. The integrated micro DC screen of claim 5, wherein the bracket unit is provided with a DC output terminal, and the DC output switch is divided into a control female switch and a closing female switch, which are respectively connected with a control female load and a closing female load.
8. The integrated micro dc panel of claim 7, wherein the monitoring unit alarms according to the measured ac voltage, and the charging module rectifies the input ac power into dc power, and outputs the dc power from the dc output terminal to the dc output switch and the battery switch, while supplying power to the monitoring unit.
9. The integrated micro direct current screen of claim 8, wherein the bracket unit is provided with a shunt, the monitoring unit measures a direct current load current and a battery pack charging current from the shunt, gives an alarm when the direct current load current is overcurrent, and performs uniform and floating charging control on the battery pack according to the measured battery pack charging current;
the monitoring unit detects the direct current voltage from the direct current output terminal and carries out controlled alarm operation on the whole direct current screen system according to the measured direct current voltage.
10. The integrated micro direct current screen of claim 9, wherein the monitoring unit is in communication with the upper computer and the lower computer through two 485 serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613003.4U CN215419073U (en) | 2021-07-15 | 2021-07-15 | Integrated miniature direct current screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613003.4U CN215419073U (en) | 2021-07-15 | 2021-07-15 | Integrated miniature direct current screen |
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| Publication Number | Publication Date |
|---|---|
| CN215419073U true CN215419073U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121613003.4U Active CN215419073U (en) | 2021-07-15 | 2021-07-15 | Integrated miniature direct current screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910686A (en) * | 2022-11-18 | 2023-04-04 | 东科新能(无锡)电子有限公司 | Double-gun direct current charging pile A-type switch module and using method thereof |
-
2021
- 2021-07-15 CN CN202121613003.4U patent/CN215419073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910686A (en) * | 2022-11-18 | 2023-04-04 | 东科新能(无锡)电子有限公司 | Double-gun direct current charging pile A-type switch module and using method thereof |
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