CN215817650U

CN215817650U - Power supply selector

Info

Publication number: CN215817650U
Application number: CN202122158369.3U
Authority: CN
Inventors: 曹佶; 于建阁; 朱开开
Original assignee: Zhejiang Hangke Instrument Co ltd
Current assignee: Zhejiang Hangke Instrument Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-11
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a power supply selector which comprises a box body, a plurality of relays, a negative electrode conductive plate, a positive electrode input plate, a positive electrode output plate and a communication selection plate, wherein the relays, the negative electrode conductive plate, the positive electrode input plate, the positive electrode output plate and the communication selection plate are arranged in the box body, the communication selection plate is used for enabling the relays to be switched on or switched off, the relays are respectively in signal connection with the communication selection plate, the positive electrode input ends of the relays are electrically connected with the positive electrode input plate, and the positive electrode output ends of the relays are electrically connected with the positive electrode output plate. The power supply can automatically select a proper power supply, and errors are not easy to occur.

Description

Power supply selector

Technical Field

The utility model relates to the field of electronic circuits, in particular to a power supply selector.

Background

As electronic circuits are used more and more widely, the kinds of power supplies required are more and more, and in some large-scale devices or more complex systems, various power supplies are often required.

However, sometimes these large devices (such as power testing devices) or systems only need to select one or more power sources from a plurality of power sources, which is troublesome if the proper power source is selected manually, and even causes errors and unnecessary troubles.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a power supply selector which can automatically select a proper power supply and is not easy to make mistakes.

The purpose of the utility model is realized by adopting the following technical scheme:

a power supply selector comprises a box body, a plurality of relays, a negative electrode conducting plate, a positive electrode input plate, a positive electrode output plate and a communication selection plate, wherein the relays, the negative electrode conducting plate, the positive electrode input plate and the positive electrode output plate are arranged in the box body, the communication selection plate is used for enabling the relays to be connected or disconnected, the relays are respectively in signal connection with the communication selection plate, the positive electrode input ends of the relays are electrically connected with the positive electrode input plate, and the positive electrode output ends of the relays are electrically connected with the positive electrode output plate.

Preferably, the box includes bottom plate, curb plate, front end plate and the back end plate of fixed connection in proper order, a plurality of relays negative pole conductive plate with the communication option board is all fixed on the bottom plate.

Preferably, the power selector further includes a negative output board and a plurality of power input ends, the power input ends are all disposed on the front end board, the power input ends are respectively electrically connected to the negative conductive board and the positive input board, the negative output board is disposed on the rear end board, and the negative conductive board is electrically connected to the negative output board.

Preferably, the power selector further includes an output plug, the output plug is disposed on the rear end plate, the output plug includes an anode end and a cathode end, the anode end is electrically connected to the anode output plate, and the cathode end is electrically connected to the anode output plate.

Preferably, the power selector comprises 12 relays and 3 positive output plates, wherein 4 relays are electrically connected with one positive output plate.

Preferably, the power input end is an aviation interface with a plurality of jacks.

Preferably, the communication selection board comprises a PCB board, and a signal selector and an MCU chip which are arranged on the PCB board, wherein the signal selector is electrically connected with the MCU chip, and the signal selector is in signal connection with the relay.

Preferably, the relay includes an insulating plate and a signal terminal, the signal terminal is in signal connection with the signal selector, and the positive input plate is separated from the positive output plate by the insulating plate.

Preferably, the power selector further comprises a current sensor, and the current sensor is electrically connected with the positive output board and the MCU chip respectively.

Preferably, the negative electrode conductive plate is a copper plate.

Compared with the prior art, the utility model has the beneficial effects that:

the power supply selector is provided with the relays and the communication selection board used for enabling the relays to be connected or disconnected, each relay can be electrically connected with one power supply, and a user can select one or more relays to be connected or disconnected through the communication selection board to enable the proper power supply to be connected, so that the purpose of automatically selecting the proper power supply is achieved, and mistakes are avoided.

Drawings

FIG. 1 is a schematic perspective view of a power selector according to the present invention;

FIG. 2 is a schematic perspective view of the power selector of the present invention with the top plate removed;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a front elevational view of the front endplate of the present invention;

fig. 5 is a front view of the rear endplate of the present invention.

In the figure: 100. a power supply selector; 10. a box body; 11. a side plate; 12. a base plate; 121. a negative conductive plate; 122. a negative output plate; 13. a front end plate; 131. a power supply input terminal; 132. a switch; 14. a rear end plate; 141. an indicator light; 142. a button; 143. perforating; 15. an output plug; 16. an upper end plate; 151. an anode terminal; 152. a cathode terminal; 20. a communication selection board; 21. a PCB integrated board; 22. an MCU chip; 23. a current sensor; 30. a relay; 31. a positive input plate; 32. a positive output plate; 33. a signal terminal; 34. an insulating plate.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and the detailed description below:

in the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "lateral", "longitudinal", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, the present invention discloses a power selector 100, which includes a box 10, a plurality of relays 30 disposed in the box 10, a negative conductive plate 121, a positive input plate 31, a positive output plate 32, and a communication selection plate 20 for turning on or off the relays 30, wherein the relays 30 are respectively in signal connection with the communication selection plate 20, a positive input end (not shown) of the relays 30 is electrically connected to the positive input plate 31, and positive output ends (not shown) of the relays 30 are electrically connected to the positive output plate 32.

In the above embodiment, the power selector 100 is provided with a plurality of relays 30 and a communication selection board 20 for turning on or off the relays 30, wherein the positive electrode of the power can be electrically connected to the relays 30 through a positive input board 31, generally, one relay 30 is electrically connected to one power, when a user sets the communication selection board 20 to select the on or off of one or more relays 30 (program or code), the positive electrode of a proper power can be electrically connected to the positive output board 32, and the negative electrode of the power can be electrically connected to the negative conductive board 121 (the negative electrode can be directly led out from the negative conductive board 121), so that the power can output current, thereby achieving the purpose of automatically selecting a proper power and avoiding errors. The negative conductive plate 121 is preferably a copper plate.

As shown in fig. 1 to 4, in a preferred embodiment, the case 10 includes a bottom plate 12, a side plate 11, a front end plate 13, and a rear end plate 14, which are fixedly connected in this order, and a plurality of relays 30, the negative conductive plate 121, and the communication selection plate 20 are fixed to the bottom plate 12. The power selector 100 further includes a negative output plate 122, an output plug 15, and a plurality of power input terminals 131, wherein the plurality of power input terminals 131 are all disposed on the front end plate 13, the power input terminals 131 are respectively electrically connected to the negative conductive plate 121 and the positive input plate 31, the negative output plate 122 is disposed on the rear end plate 14, and the negative conductive plate 121 is electrically connected to the negative output plate 122.

In the above embodiment, the case 10 further includes an upper end plate 16, the case 10 is generally a rectangular body for easy installation and storage, and the case 10 may be installed on a large equipment (power test device) like a drawer. The power input end 131 is an aviation interface with a plurality of jacks, the power input end 131 can input various power sources, the plurality of power input ends 131 can input various power sources 131, the positive pole of the power input end 131 is electrically connected with the positive pole input plate 31, and the negative pole of the power input end 131 is electrically connected with the negative pole conductive plate 121. The negative electrode output plate 122 is beneficial to the output of negative electrode current, the negative electrode output plate 122 is riveted with the negative electrode conductive plate 121, and the negative electrode output plate 122 can also be grounded. The output plug 15 facilitates the output of current and facilitates the mounting of the present power selector 100.

As shown in fig. 2 and 3, in a preferred embodiment, the communication selection board 20 includes a PCB 21, and a signal selector (not shown) and an MCU chip 22 disposed on the PCB 21, wherein the signal selector is electrically connected to the MCU chip 22, and the signal selector is in signal connection with the relay 30. The relay 30 includes an insulating plate 34 and a signal terminal 33, the signal terminal 33 is in signal connection with the signal selector, and the positive input plate 31 is separated from the positive output plate 32 by the insulating plate 34. The power selector 100 further includes a current sensor 23, and the current sensor 23 is electrically connected to the positive output board 32 and the MCU chip 22, respectively.

In the above embodiment, the signal selector may be a 74LS153 selector, the MCU chip 22 may be in signal connection with an upper computer, a program or a code for controlling the signal selector may be set in the MCU chip 22, the MCU chip 22 controls the 74LS153 selector to output an on-off signal to the relay 30 through the corresponding code or program, the signal selector inputs an on-off signal (may be a high-low level signal) to the relay 30 through the signal terminal 33, the positive output terminal of the relay 30 receiving a high level is closed to turn on the power supply of the path, and the positive output terminal of the relay 30 receiving a low level is opened to turn off the power supply of the path, so as to control the on-off of the power supply. The insulating plate 34 prevents the positive input plate 31 from being short-circuited with the positive output plate 32. The current sensor 23 can detect the magnitude of the output current, transmit the information of the output current to the MCU chip 22, and upload the information to the upper computer.

As shown in fig. 2, the power selector includes 12 relays and 3 positive output boards 32, where 4 relays 30 and one positive output board 32 form one group, and each group includes 4 relays 30 electrically connected to one positive output board 32.

As shown in fig. 4, a switch 132 is further disposed on the front panel 13, and the switch 132 is electrically connected to the communication selection board 20.

As shown in fig. 5, the output plug 15 is disposed on the rear end plate 14, the output plug 15 includes an anode terminal 151 and a cathode terminal 152, the anode terminal 151 is electrically connected to the positive output plate 32, and the cathode terminal 152 is electrically connected to the negative output plate 122. The lower end of the output plug 15 is provided with an indicator lamp 141 for indicating whether the current is normal, and the rear end plate 14 is further provided with a through hole 143 for facilitating the installation of a line and a button 142 for switching on and off the line.

In summary, according to the power supply selector 100, by providing a plurality of relays 30 and a communication selection board 20 for turning on or off the relays 30, a user can turn on a suitable power supply by setting the communication selection board 20 to select the on or off of one or more of the relays 30, thereby achieving the purpose of automatically selecting a suitable power supply.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. A power supply selector, characterized by: the relay comprises a box body, a plurality of relays, a negative electrode conducting plate, a positive electrode input plate, a positive electrode output plate and a communication selection plate, wherein the relays, the negative electrode conducting plate, the positive electrode input plate and the positive electrode output plate are arranged in the box body, the communication selection plate is used for enabling the relays to be connected or disconnected, the relays are respectively in signal connection with the communication selection plate, the positive electrode input ends of the relays are electrically connected with the positive electrode input plate, and the positive electrode output ends of the relays are electrically connected with the positive electrode output plate.

2. The power selector as claimed in claim 1, wherein the case includes a bottom plate, a side plate, a front end plate and a rear end plate fixedly connected in this order, and a plurality of relays, the negative conductive plate and the communication selection plate are fixed to the bottom plate.

3. The power selector of claim 2, further comprising a negative output plate and a plurality of power inputs, each of the plurality of power inputs being disposed on the front end plate, the power inputs being electrically connected to the negative conductive plate and the positive input plate, respectively, the negative output plate being disposed on the rear end plate, the negative conductive plate being electrically connected to the negative output plate.

4. The power supply selector of claim 3, further comprising an output plug disposed on the back end plate, the output plug comprising an anode end and a cathode end, the anode end being electrically connected to the positive output plate, the cathode end being electrically connected to the negative output plate.

5. The power supply selector of claim 4, wherein the power supply selector comprises 12 relays and 3 positive output plates, wherein 4 relays are each electrically connected to one positive output plate.

6. The power supply selector of claim 5, wherein the power supply input is an aircraft interface having a plurality of jacks.

7. The power selector according to claim 1, wherein the communication selector board comprises a PCB board, and a signal selector and an MCU chip disposed on the PCB board, the signal selector is electrically connected to the MCU chip, and the signal selector is in signal connection with the relay.

8. The power selector of claim 7, wherein the relay includes an insulator plate and a signal terminal, the signal terminal being in signal connection with the signal selector, the positive input plate being separated from the positive output plate by the insulator plate.

9. The power supply selector according to claim 8, further comprising current sensors electrically connected to the positive output board and the MCU chip, respectively.

10. The power selector of claim 1, wherein the negative conductive plate is a copper plate.