CN210578228U - Direct current power supply device with detection device - Google Patents
Direct current power supply device with detection device Download PDFInfo
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- CN210578228U CN210578228U CN201921875624.2U CN201921875624U CN210578228U CN 210578228 U CN210578228 U CN 210578228U CN 201921875624 U CN201921875624 U CN 201921875624U CN 210578228 U CN210578228 U CN 210578228U
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- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- RICKKZXCGCSLIU-UHFFFAOYSA-N 2-[2-[carboxymethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]ethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]acetic acid Chemical compound CC1=NC=C(CO)C(CN(CCN(CC(O)=O)CC=2C(=C(C)N=CC=2CO)O)CC(O)=O)=C1O RICKKZXCGCSLIU-UHFFFAOYSA-N 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to a direct current power supply device with a detection device, which comprises a direct current power supply body and a detection device; the detection device comprises a detection controller, and the detection controller is connected with a voltage sensor and a communication unit; the voltage sensor is connected with the direct current power supply body and used for detecting the voltage of the direct current power supply body and sending the voltage to the detection controller; an isolation unit based on an IS07240 chip IS arranged between the detection controller and the voltage sensor, and the communication unit IS used for communicating with an upper computer. The utility model provides a technical scheme is provided with detection device in the DC power supply device, is provided with the isolation unit between detection controller among the detection device and the voltage sensor, accessible isolation unit disconnection voltage sensor and detection controller when the DC power supply body appears unusually be connected to prevent that the DC power supply body from causing the influence to the detection controller, solve the lower problem of DC power supply stability among the prior art.
Description
Technical Field
The utility model belongs to the technical field of DC power supply, concretely relates to DC power supply device with detection device.
Background
The direct-current power supply is one of power supplies commonly used in a power system and is power supply equipment with a large application range, and the direct-current power supply is commonly used as a power monitoring power supply and provides power support for operation of distribution network equipment, monitoring operation of power utilization equipment and operation of power transformation equipment.
At present, the majority of operation in a direct current device of a transformer substation is supplied with power by a direct current screen, the direct current screen power supply has the defects that batteries and partial charging modules need to be replaced when the direct current screen is operated for a period of time, if the voltage of the batteries in the direct current screen does not meet the requirement, the operation equipment can be rejected, so that accidents are further expanded, the operation of superior equipment is directly influenced, and once the operation of the superior equipment is influenced, the normal and stable operation of a power device can be damaged.
Therefore, in order to improve the stability of the dc power supply, a detection device may be disposed at the dc power supply, and the detection device detects the output voltage of the dc power supply and determines whether there is an abnormality according to the output voltage of the dc power supply. However, when the dc power supply is abnormal, the detection device may be damaged, which may reduce the stability of the dc power supply.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the background art, the utility model provides a direct current power supply device with a detection device.
A DC power supply device provided with a detection device comprises a DC power supply body and the detection device; the detection device comprises a detection controller, and the detection controller is connected with a voltage sensor and a communication unit; the voltage sensor is connected with the direct-current power supply body and used for detecting the voltage of the direct-current power supply body and sending the voltage to the detection controller; an isolation unit based on an IS07240 chip IS arranged between the detection controller and the voltage sensor, and the communication unit IS used for communicating with an upper computer.
Based on the above, the detection controller is further connected with a storage unit.
Based on the above, the detection controller is also connected with an alarm unit.
Based on the above, the detection controller is connected with a display unit
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses be provided with detection device in the DC power supply device, be provided with the isolation unit between detection controller among the detection device and the voltage sensor, accessible isolation unit disconnection voltage sensor and detection controller between when DC power supply body appears unusually is connected to prevent that DC power supply body from causing the influence to detecting the controller, solve the lower problem of DC power supply stability among the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a detection device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an isolation unit in an embodiment of the present invention;
fig. 4 is a schematic diagram of the connection between the detection controller and the storage unit according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a USB interface according to an embodiment of the present invention;
fig. 6 is a circuit diagram of an alarm unit in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The present embodiment provides a dc power supply device provided with a detection device, in which the detection device is provided to detect whether there is an abnormality in the dc power supply device, thereby improving the stability of the dc power supply device.
The direct-current power supply device provided with the detection device comprises a direct-current power supply body and the detection device, wherein the detection device is structurally shown in fig. 1 and comprises a detection controller, and the detection controller is connected with a voltage sensor, a communication unit, an alarm unit, a storage unit and a display unit.
The detection controller in this embodiment is a DSP single chip microcomputer of model number TMS320F28377, the communication unit is an RS485 communication unit based on chip SP3485, and the structure is shown in fig. 2, where IC1 is a chip of model number SP3485, R71, R72, R73, R74, and R75 are resistors, Q is a triode, TVS1, TVS2, and TVS3 are voltage regulators, F1, and F2 are fuses, P is an RS485 interface, pin 6 and pin 7 of chip IC1 are connected to pin 3 and pin 4 in interface P, pin 1 of P is connected to a power supply, and pin 4 is grounded. Pin 1 and pin 4 of the chip IC3 are connected to two pins of the test controller, respectively, and the test controller receives and transmits data through the chip IC1 and the RS485 interface P. And the RS485 interface P is used for connecting an upper computer, so that information interaction between the detection controller and the upper computer is realized.
The voltage sensor in the embodiment comprises a first voltage sensor and a second voltage sensor, wherein the first voltage sensor is arranged at the positive pole of the direct current power supply body and is used for detecting the voltage to ground of the positive pole of the direct current power supply body; the second voltage sensor is arranged at the negative pole of the direct current power supply body and used for detecting the voltage to ground of the negative pole of the direct current power supply body. In this embodiment, the first voltage sensor and the second voltage sensor are both direct current voltage sensors of CHVS-ASV, and the detection controller is connected to the voltage sensors through the isolation unit. The isolation unit is based on an ISO7240 chip, and the circuit structure of the isolation unit is shown in FIG. 3, wherein IC2 is an ISO7240 chip. Pin 1 and pin 16 of the chip IC2 are power supply pins and are connected to a power supply; pin 2, pin 8, pin 9, and pin 15 are grounded; pin 3 and pin 4 are respectively one of the input terminals of the chip IC2, where pin 3 is connected to the signal output terminal of the first voltage sensor, pin 2 is connected to the signal output terminal of the second voltage sensor, pin 14 is an output pin corresponding to pin 3, and pin 13 is an output pin corresponding to pin 4; pin 13 and pin 14 of the chip IC2 are connected to one pin of the test controller, respectively; the pin 10 of the chip IC2 is an enable terminal, and is connected to one of the pins of the test controller, and when the pin of the test controller outputs a high potential, the test controller receives the voltage signal output from the second voltage sensor and received by the pin 4 from the pin 13 of the chip IC2, and receives the voltage signal output from the first voltage sensor and received by the pin 3 from the pin 14 of the chip IC 2.
The voltage signal that the detection controller received first voltage sensor and second voltage sensor detects will be differed with both after, can calculate the output voltage of DC power supply body.
The detection controller judges whether the difference between the calculated output voltage of the direct current power supply body and the set voltage is larger than the set difference or not, and if the difference is larger than the set difference, the detection controller judges that the power supply of the direct current power supply body is abnormal.
When the detection controller judges that the direct current power supply body is abnormal, the direct current power supply body is sent to the upper computer through the communication unit, so that a worker can take measures in time.
When the detection controller judges that the direct-current power supply body is abnormal, the detection controller pulls down the enabling end potential of the chip IC2, and the connection between each input end of the chip IC2 and the corresponding output end is disconnected, so that the connection between the direct-current power supply body and the detection controller is disconnected, and the direct-current power supply is prevented from influencing the detection controller.
The memory unit in this embodiment is an SPI NorFlash chip with a model of S25FL128, and the detection controller is connected to a clock pin and a data pin of the Flash chip, as shown in fig. 4, where the Flash chip is an SPI NorFlash chip with a model of S25FL128, so that the detection controller is in communication connection with the Flash chip. And the detection controller stores the data detected by the first voltage sensor and the second voltage sensor in the Flash chip.
In this embodiment, the detection controller is further connected to a USB interface, as shown in fig. 5, where USB is a USB interface, IC3 is a chip with a model of CH340G, the USB interface is a USB female connector, a VUSB pin of the USB female connector is connected to VCC through a switch S1, a GND pin is grounded, a UD-pin and a UD + pin are connected to a UD-pin and a UD + pin of a CH340G chip, a crystal oscillator Y2 is disposed between XI and XO pins of the CH340G chip, the VCC pin is connected to an anode of a light emitting diode PLED through a resistor R6, and a cathode of the light emitting diode PLED is grounded; the TXD pin and the RXD pin of the CH340G chip are respectively connected with two pins of the detection controller, and the touch screen is in communication connection with the detection controller through a USB interface. In fig. 5, R7, R8, R9 and R10 are resistors, D9 is a diode, C4, C5, C6, C7 and C8 are capacitors, PLED and RLED are light emitting diodes, VCC is a power supply, and S1 is a switch. The display unit in this embodiment is a touch panel of model HX0701601V2.0. The detection controller is connected with the display unit, can not only display the output voltage of the direct current power supply through the display unit, but also can receive data input by a user from the display unit and set parameters for the detection controller.
The alarm unit in this embodiment is an alarm indicator light, the detection controller is connected to the alarm indicator light, as shown in fig. 6, the anode of the alarm indicator light L is connected to the power supply, the cathode is grounded, and the contact part of the relay K0 is serially connected to the circuit of the anode of the indicator light connected to the power supply. The positive pole of the coil part of the relay K0 is connected with the emitting pole of a triode Q0, the collector of the triode Q0 is connected with a power supply through a pull-up resistor R0, and the base is connected with a detection controller. When the detection controller judges that the direct current power supply body is abnormal, the triode Q is triggered to be conducted through the base electrode of the triode Q; when the triode Q is conducted, the coil part of the relay K0 is electrified, the contact part of the relay K0 acts, and the alarm indicator lamp L is electrified and emits light, so that whether the direct-current power supply body is abnormal or not can be judged according to the alarm indicator lamp L.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a DC power supply device with detection device, includes the DC power supply body, its characterized in that: the device also comprises a detection device; the detection device comprises a detection controller, and the detection controller is connected with a voltage sensor and a communication unit; the voltage sensor is connected with the direct-current power supply body and used for detecting the voltage of the direct-current power supply body and sending the voltage to the detection controller; an isolation unit based on an IS07240 chip IS arranged between the detection controller and the voltage sensor, and the communication unit IS used for communicating with an upper computer.
2. The direct-current power supply device provided with the detection device according to claim 1, characterized in that: the detection controller is also connected with a storage unit.
3. The direct-current power supply device provided with the detection device according to claim 1, characterized in that: the detection controller is also connected with an alarm unit.
4. The direct-current power supply device provided with the detection device according to claim 1, characterized in that: the detection controller is connected with a display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921875624.2U CN210578228U (en) | 2019-11-04 | 2019-11-04 | Direct current power supply device with detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921875624.2U CN210578228U (en) | 2019-11-04 | 2019-11-04 | Direct current power supply device with detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210578228U true CN210578228U (en) | 2020-05-19 |
Family
ID=70662281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921875624.2U Expired - Fee Related CN210578228U (en) | 2019-11-04 | 2019-11-04 | Direct current power supply device with detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210578228U (en) |
-
2019
- 2019-11-04 CN CN201921875624.2U patent/CN210578228U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |