CN215042611U - double-DC power supply isolation and parallel switching device - Google Patents
double-DC power supply isolation and parallel switching device Download PDFInfo
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- CN215042611U CN215042611U CN202120215705.0U CN202120215705U CN215042611U CN 215042611 U CN215042611 U CN 215042611U CN 202120215705 U CN202120215705 U CN 202120215705U CN 215042611 U CN215042611 U CN 215042611U
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Abstract
A double-DC power supply isolation and parallel switching device relates to the technical field of communication vehicle power supply protection; the device comprises a device body, a control unit and a power supply detection control board, wherein the device body is arranged between a chassis power supply and a communication system direct-current power supply and comprises an actuator 1, an actuator 2 and the power supply detection control board; the output end of the chassis power supply is connected with an actuator 1, the input end of the actuator 1 is connected with a power supply detection control board through a cable, and the output end of the actuator 1 is connected with the input end of a direct-current power supply of a communication system; a chassis power supply forced key and a reverse power supply forced key are also arranged; the chassis power supply forced key is connected with the power supply detection control panel, and the reverse power supply forced key is connected with the power supply detection control panel; the direct current power supply of the communication system is connected with the input end of the actuator 2, and the input end of the actuator 2 is connected with the power supply detection control panel through a control cable; the output end of the actuator 2 is connected with a chassis power supply; the problem that a chassis power supply and a communication system direct-current power supply cannot be isolated and connected as required when connected is solved.
Description
Technical Field
The utility model relates to a communication car power protection technical field, in particular to two DC power supply keep apart, parallelly connected auto-change over device.
Background
When the automobile chassis power supply of the existing mobile communication vehicle is connected with the direct current power supply of the communication system, the automobile chassis power supply can not be isolated and connected as required, and the chassis storage battery is often damaged due to over-discharge; therefore, when the chassis silicon generator needs to be introduced into a direct current power supply used in a communication system, the following problems need to be solved: 1. under the normal state, the chassis silicon generator normally generates power and is accessed to a direct current power supply network of the communication system when direct current is output, and the direct current power supply is unidirectionally provided for the communication system; when the chassis silicon generator does not work, the chassis power supply is isolated from the direct current power supply of the communication system; 2. under the emergency condition, the chassis power supply can be forced to access a communication system direct-current power supply network, the chassis storage battery is forced to provide the direct-current power supply for the communication system, or the communication system direct-current power supply network is forced to reversely provide the direct-current power supply for the chassis, and the emergency starting of the chassis is guaranteed.
SUMMERY OF THE UTILITY MODEL
The defect that can not keep apart as required, connect the needs hookup when having chassis power and communication system DC power supply to be connected among the above-mentioned prior art, the utility model aims to solve the technical problem that a two DC power supply keep apart, parallelly connected auto-change over device is proposed, and the protection chassis storage battery does not discharge because of the communication system power consumption.
In order to solve the above problem, the utility model discloses the technical scheme who takes is: the utility model provides a two DC power supply keep apart, parallelly connected auto-change over device, includes the device body, installs between chassis power and communication system DC power supply, and the chassis power includes chassis silicon generator and chassis storage battery, and communication system DC power supply includes communication power supply and communication storage battery, and the device body includes executor 1, executor 2 and is used for detecting chassis power and communication system DC power supply's two DC power supply detection control panels.
Further, the output end of the chassis power supply is connected with the actuator 1, the input end of the actuator 1 is connected with the interface VCC1 of the power supply detection control board through a control cable, and the output end of the actuator 1 is connected with the direct-current power supply input end of the communication system.
Furthermore, the device body is provided with a chassis power supply forced key and a reverse power supply forced key; the chassis power supply forced key is connected with an interface K3 of the power supply detection control panel, and the reverse power supply forced key is connected with an interface K4 of the power supply detection control panel; the direct current power supply of the communication system is connected with the input end of the actuator 2, and the input end of the actuator 2 is connected with an interface VCC2 of the power supply detection control board through a control cable; the output end of the actuator 2 is connected with a chassis power supply.
Preferably, the actuator 1 and the actuator 2 are both high-power unidirectional electronic switches.
Preferably, the actuator 1 is a high-power diode, and the actuator 2 is a high-power relay; or the actuator 1 is a high-power relay, and the actuator 2 is a high-power diode.
Preferably, the output voltage of the chassis silicon generator is DC 28V.
Preferably, the output voltage of the chassis battery is DC 24V.
Preferably, the output voltage of the communication power supply is DC 24V.
The utility model discloses the beneficial effect who gains lies in:
1. the problem that a chassis power supply and a communication system direct-current power supply cannot be isolated and connected as required when connected is solved; the chassis battery is protected from being over-discharged due to the power consumption of the communication system;
2. under the condition that the power supply of the direct-current power supply of the communication system is insufficient, the chassis power supply can be forced to be connected into a direct-current power supply network of the communication system, and the chassis storage battery is forced to provide the direct-current power supply for the communication system so as to guarantee an emergency communication task;
3. under the condition that the chassis cannot be smoothly started due to the power shortage of the chassis storage battery, the direct-current power supply network of the communication system can be forced to reversely provide a direct-current power supply for the chassis, and the emergency starting of the chassis is guaranteed.
Drawings
Fig. 1 is a schematic circuit diagram in an embodiment of the present invention;
fig. 2 is a mounting circuit diagram in an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
As shown in fig. 1, a dual dc power isolation and parallel switching device includes a device body installed between a chassis power supply and a dc power supply of a communication system, as shown in fig. 2; the chassis power supply comprises a chassis silicon generator and a chassis storage battery, the communication system direct-current power supply comprises a communication power supply and a communication storage battery, and the device body comprises an actuator 1 for controlling the chassis power supply to supply power to the communication system direct-current power supply in the direction, an actuator 2 for controlling the communication system direct-current power supply to supply power to the chassis power supply in the direction and a double direct-current power supply detection control board for detecting the chassis power supply and the communication system direct-current power supply.
The output end of the chassis power supply is connected with the actuator 1, the input end of the actuator 1 is connected with the interface VCC1 of the power supply detection control panel through a control cable, and the output end of the actuator 1 is connected with the direct-current power supply input end of the communication system.
The device body is provided with a chassis power supply forced key and a reverse power supply forced key; the chassis power supply forced key is connected with an interface K3 of the power supply detection control panel, and the reverse power supply forced key is connected with an interface K4 of the power supply detection control panel; the direct current power supply of the communication system is connected with the input end of the actuator 2, and the input end of the actuator 2 is connected with an interface VCC2 of the power supply detection control board through a control cable; the output end of the actuator 2 is connected with a chassis power supply.
Specifically, the actuator 1 and the actuator 2 are both high-power unidirectional electronic switches.
Specifically, the output voltage of the chassis silicon generator under normal conditions is DC 28V.
Specifically, the output voltage of the chassis battery is DC 24V.
Specifically, the output voltage of the communication power supply is DC 24V.
Specifically, when the power detection control board detects that the chassis silicon generator normally works and normally outputs 28V direct current, the power detection control board sends a conduction signal to control the conduction of the high-power unidirectional electronic switch 1, the chassis power supplies power to the communication system, and at this time, the communication system is powered by the direct current power supply of the communication system and the chassis power supply at the same time.
Specifically, when the power detection control board detects that the chassis silicon generator does not work, the power detection control board sends a turn-off signal to control the high-power one-way electronic switch 1 to be turned off, at the moment, the high-power one-way electronic switches 1 and 2 are not conducted, and the chassis power supply is isolated from the direct-current power supply of the communication system.
Specifically, when the power detection control panel detects that the direct-current power supply of the communication system is insufficient, the chassis power supply forced key on the power detection control panel is pressed to control the high-power one-way electronic switch 1 to be switched on, so that the chassis power supply can be forced to access the communication system, and the chassis storage battery is forced to provide a DC24V storage battery power supply for the communication system to guarantee the completion of emergency communication tasks.
Specifically, when a chassis storage battery in the chassis power supply is insufficient in power and cannot smoothly start the chassis, the reverse power supply forced key on the power supply detection control panel is pressed to control the high-power one-way electronic switch 2 to be switched on, and the direct-current power supply of the forced communication system reversely provides a DC24V power supply for the chassis to guarantee the emergency starting of the chassis.
In this embodiment, the actuator 1 may also be a high-power diode, and the actuator 2 is a high-power relay; the actuator 1 is a high-power relay, and the actuator 2 is a high-power diode.
The utility model solves the problem that the chassis power supply can not be isolated and connected as required when being connected with the communication system direct current power supply; the chassis battery is protected from being over-discharged due to the power consumption of the communication system; under the condition that the power supply of the direct-current power supply of the communication system is insufficient, the chassis power supply can be forced to access a direct-current power supply network of the communication system, and the direct-current power supply of the chassis storage battery is forced to be provided for the communication system so as to guarantee an emergency communication task; under the condition that the chassis cannot be smoothly started due to the power shortage of the chassis storage battery, the direct-current power supply of the communication system can be forced to reversely provide the direct-current power supply for the chassis, and the emergency starting of the chassis is guaranteed.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (6)
1. The utility model provides a two DC power supply keep apart, parallelly connected auto-change over device which characterized in that: the device comprises a device body, wherein the device body is arranged between a chassis power supply and a communication system direct-current power supply, the chassis power supply comprises a chassis silicon generator and a chassis storage battery, the communication system direct-current power supply comprises a communication power supply and a communication storage battery, and the device body comprises an actuator 1, an actuator 2 and a double direct-current power supply detection control panel for detecting the chassis power supply and the communication system direct-current power supply;
the output end of the chassis power supply is connected with an actuator 1, the input end of the actuator 1 is connected with an interface VCC1 of a power supply detection control board through a control cable, and the output end of the actuator 1 is connected with the input end of a direct-current power supply of a communication system;
the device body is provided with a chassis power supply forced key and a reverse power supply forced key; the chassis power supply forced key is connected with an interface K3 of the power supply detection control panel, and the reverse power supply forced key is connected with an interface K4 of the power supply detection control panel; the communication system direct current power supply is connected with the input end of the actuator 2, and the input end of the actuator 2 is connected with an interface VCC2 of the power supply detection control board through a control cable; the output end of the actuator 2 is connected with a chassis power supply.
2. The dual dc power isolation, parallel switching device of claim 1, wherein: the actuator 1 and the actuator 2 are both high-power one-way electronic switches.
3. The dual dc power isolation, parallel switching device of claim 1, wherein: the actuator 1 is a high-power diode, and the actuator 2 is a high-power relay; the actuator 1 is a high-power relay, and the actuator 2 is a high-power diode.
4. The dual dc power isolation, parallel switching device of claim 1, wherein: the output voltage of the chassis silicon generator is DC 28V.
5. The dual dc power isolation, parallel switching device of claim 1, wherein: the output voltage of the chassis battery is DC 24V.
6. The dual dc power isolation, parallel switching device of claim 1, wherein: the output voltage of the communication power supply is DC 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120215705.0U CN215042611U (en) | 2021-01-26 | 2021-01-26 | double-DC power supply isolation and parallel switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120215705.0U CN215042611U (en) | 2021-01-26 | 2021-01-26 | double-DC power supply isolation and parallel switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215042611U true CN215042611U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120215705.0U Active CN215042611U (en) | 2021-01-26 | 2021-01-26 | double-DC power supply isolation and parallel switching device |
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| Country | Link |
|---|---|
| CN (1) | CN215042611U (en) |
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2021
- 2021-01-26 CN CN202120215705.0U patent/CN215042611U/en active Active
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