CN212695402U

CN212695402U - Intelligent PDU device

Info

Publication number: CN212695402U
Application number: CN202020679750.7U
Authority: CN
Inventors: 唐蔚海; 周志糯; 李嗣明; 黄良毅; 张铁刚
Original assignee: Information Communication Branch of Hainan Power Grid Co Ltd
Current assignee: Information Communication Branch of Hainan Power Grid Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-03-12
Anticipated expiration: 2030-04-28

Abstract

The utility model provides an intelligence PDU device, this internal circuit board, sensor module, first relay, temperature control assembly of being provided with of PDU device, the integration has main control chip and communication module on the circuit board, the circuit board is connected with the main circuit electricity of PDU device, first relay series connection is in the main circuit to be connected with circuit board electricity through relay drive circuit, sensor module includes current sensor, voltage sensor and temperature and humidity sensor, current sensor, voltage sensor are used for measuring the electric current and the voltage of main circuit respectively, and current sensor, voltage sensor and temperature and humidity sensor respectively with circuit board signal connection. The intelligent PDU device has the characteristics of multiple functions, strong safety and wide application range.

Description

Intelligent PDU device

Technical Field

The utility model relates to a PDU technical field especially relates to an intelligence PDU device.

Background

PDU (Power Distribution Unit), the product that designs provides Power Distribution for the electrical equipment of rack formula installation, possess different functions, the multiple series specification of mounting means and different plug-in combination, PDU equipment is close to the position operation of server in the rack, the server can produce a large amount of heats at the operation in-process, PDU equipment itself also can produce the heat at the operation in-process simultaneously, current PDU device heat dispersion is relatively poor, long-time operation under high temperature environment can lead to PDU equipment life-span to shorten, the casing melts and even appears catching fire, the potential safety hazard is great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligence PDU device to overcome or at least partially solve the above-mentioned problem that prior art exists.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides an intelligence PDU device, includes the PDU device body, this internal circuit board, sensor module, first relay, temperature control subassembly of being provided with of PDU device, the integration has main control chip and communication module on the circuit board, the circuit board is connected with the main circuit electricity of PDU device, first relay series connection is in the main circuit to be connected with circuit board electricity through relay drive circuit, sensor module includes current sensor, voltage sensor and temperature and humidity sensor, current sensor, voltage sensor are used for measuring the electric current and the voltage of main circuit respectively, and current sensor, voltage sensor and temperature and humidity sensor respectively with circuit board signal connection.

Further, the temperature control subassembly includes semiconductor refrigeration piece, contact base, heat pipe and second relay, the heat pipe encircles PDU device body inside wall setting, the heat pipe surface is laminated with the contact base mutually, the contact base is laminated with the cold junction of semiconductor refrigeration piece mutually, the semiconductor refrigeration piece is connected with the second relay electricity, the second relay passes through relay drive circuit and is connected with the circuit board electricity.

Furthermore, a radiating fin is arranged at the hot end of the semiconductor refrigerating fin, a fan is arranged on the radiating fin, and radiating holes corresponding to the position of the fan are formed in the side wall of the PDU device body.

Furthermore, heat-conducting silicone grease is arranged between the radiating fin and the hot end of the semiconductor refrigerating fin.

Further, be equipped with in the PDU device body socket and insert detection mechanism, insert detection mechanism includes piezoelectric sensor and insulation board, the jack bottom of socket is equipped with a recess, piezoelectric sensor locates the recess bottom, the recess top is located to the insulation board to be connected with piezoelectric sensor response end through elastomeric element, piezoelectric sensor and circuit board signal connection.

Furthermore, the both sides of the jack of PDU device body are equipped with first recess, second recess respectively, be equipped with two length direction perpendicular to the grip block of first recess length direction on first recess, the second recess, the grip block can be followed first recess length direction and removed.

Furthermore, the clamping plate is respectively connected with one end of the first groove and one end of the second groove through elastic components.

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

the utility model provides an intelligence PDU device, main control chip pass through the electric current, voltage data and the humiture data of sensor module monitoring PDU device, and when electric current or voltage data are unusual, main control chip can pass through relay drive circuit control relay disconnection main circuit, and main control chip can realize remote monitoring with current-voltage data transmission to the host computer through communication module simultaneously, still is equipped with the temperature control subassembly in the device for the inside temperature of adjusting device is in reasonable within range, intelligence PDU device has the function various, and the security is strong, the wide characteristics of application scope.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

Fig. 1 is an internal schematic diagram of an intelligent PDU device according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a circuit principle of an intelligent PDU device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an insertion detection mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic view of a partial structure of a jack according to an embodiment of the present invention.

In the drawing, 1 is a PDU device body, 2 is a circuit board, 21 is a main control chip, 22 is a communication module, 31 is a current sensor, 32 is a voltage sensor, 33 is a temperature and humidity sensor, 4 is a first relay, 51 is a semiconductor cooling plate, 52 is a contact base, 53 is a heat pipe, 54 is a second relay, 55 is a heat sink, 56 is a fan, 61 is a piezoelectric sensor, 62 is an insulating plate, 63 is an elastic member, 64 is an insertion hole, 71 is a first groove, 72 is a second groove, and 73 is a clamping plate.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the illustrated embodiments are provided to explain the present invention and not to limit the scope of the invention.

Example one

Referring to fig. 1, the present embodiment provides an intelligent PDU device, which includes a PDU device body 1, where the PDU device body 1 is provided with a plurality of sockets. The PDU device body 1 is internally provided with a circuit board 2, a sensor assembly, a first relay 4 and a temperature control assembly. The circuit board is integrated with a main control chip 21 and a communication module 22, and the circuit board 2 is electrically connected with a main circuit of the PDU device. The first relay 4 is connected in series in the main circuit and is electrically connected with the circuit board 2 through a relay driving circuit. The sensor assembly comprises a current sensor 31, a voltage sensor 32 and a temperature and humidity sensor 33, wherein the current sensor 31 and the voltage sensor 32 are respectively used for measuring current and voltage of a main circuit, and the temperature and humidity sensor 33 is used for measuring temperature data and humidity data. The current sensor 31, the voltage sensor 32 and the temperature and humidity sensor 33 are respectively connected with the circuit board 2 through signals.

Wherein, temperature control assembly includes semiconductor refrigeration piece 51, contact base 52, heat pipe 53 and second relay 54, heat pipe 53 encircles the setting of PDU device body 1 inside wall, the laminating of heat pipe 53 surface and contact base 52 mutually, contact base 52 and the laminating of semiconductor refrigeration piece 51's cold junction mutually, semiconductor refrigeration piece 51 is connected with second relay 54 electricity, second relay 54 is connected with circuit board 2 electricity through relay drive circuit. When semiconductor refrigeration piece 51 circular telegram, form the difference in temperature between its cold junction and the hot junction, the cold junction reduces the temperature of heat pipe 53 through the contact base 52 of laminating mutually with it, and heat pipe 53 absorbs the heat in PDU device body 1 when reducing the temperature simultaneously to reduce the inside operating temperature of PDU device body 1.

In addition, a heat radiating fin 55 is arranged at the hot end of the semiconductor refrigerating fin 51, a fan 56 is arranged on the heat radiating fin 55, a heat radiating hole is formed in the side wall of the PDU device body 1, and the position of the heat radiating hole is matched with the position of the fan 56. The heat sink 55 is used for dissipating heat from the hot end of the semiconductor cooling plate 51, and the fan 56 is used for increasing the air circulation speed on the surface of the heat sink 55 to reduce the temperature of the heat sink, so that the temperature of the hot end of the semiconductor cooling plate 51 is further reduced, the temperature of the cold end is correspondingly reduced, and a better cooling effect is achieved.

In some embodiments, a heat conductive silicone grease is disposed between the heat sink 55 and the hot end of the semiconductor cooling plate 51 to improve heat transfer efficiency.

In the above embodiment, the main control chip 21 may adopt an STM32G4 chip; the current sensor 31, the voltage sensor 32 and the temperature and humidity sensor 33 can be of known types by those skilled in the art; the communication module 22 may be a known model of NB-IoT, ZigBee, WiFi, or other communication module. In addition, a battery is integrated on the circuit board 2.

In this embodiment, the PDU device body 1 supplies electric energy to the socket and other components through the main circuit connected to the external power supply. The current sensor 31 and the voltage sensor 32 are used for monitoring the current and the voltage of the main circuit and sending related data to the main control chip 21 through the circuit board 2 for processing, the temperature and humidity sensor 33 is used for monitoring temperature and humidity data, the main control chip 21 calculates power data according to the current and voltage monitoring data and based on a preset existing algorithm, and sends the current, the voltage and the power data to an upper computer in real time through the communication module 22, so that remote monitoring is achieved. When current and voltage data are abnormal, for example, when the current and voltage data exceed a preset threshold value, the main control chip 21 can control the first relay 4 to disconnect the main circuit through the relay driving circuit, so that the safety of electric equipment connected with the PDU device is ensured, and meanwhile, the main control chip 21 can also receive an instruction of an upper computer through the communication module 22 and control the on-off of the main circuit through controlling the first relay 4. In addition, when the temperature and humidity data exceeds a preset threshold, the main control chip 21 can control the second relay 54 through the relay driving circuit to enable the semiconductor refrigerating sheet 51 to be powered on for refrigeration, so that the internal temperature of the PDU device is reduced, and when the temperature and humidity data are normal, the circuit is switched off to stop refrigeration. The intelligent PDU device can realize remote monitoring and automatic temperature adjustment of data such as current, voltage, power, humiture, and has the advantages of multiple functions, strong safety and wide application range.

Example two

On the basis of the foregoing embodiment, the present embodiment differs from the foregoing embodiment in that:

an insertion detection mechanism is arranged in a socket of the PDU device body 1. As shown in fig. 3, the insertion detection mechanism includes a piezoelectric sensor 61 and an insulating plate 62, a groove is provided at the bottom of the insertion hole 64 of the socket, the piezoelectric sensor 61 is provided at the bottom of the groove, and the sensing end of the piezoelectric sensor 61 is disposed upward. The insulating plate 62 is arranged at the top of the groove and is connected with the sensing end of the piezoelectric sensor 61 through an elastic component 63, and the piezoelectric sensor 61 is in signal connection with the circuit board 2. In this embodiment, the elastic member 63 is a spring.

When the plug of the electric equipment is inserted into the socket of the PDU device, the plug presses the insulating plate 62, so that the insulating plate 62 retracts into the groove and triggers the piezoelectric sensor 61, the piezoelectric sensor 61 sends a signal to the main control chip 21, and whether the piezoelectric sensor 61 arranged in different sockets sends a signal or not is detected, so that whether the corresponding sockets are used or not can be judged.

In addition, as shown in fig. 4, a first groove 71 and a second groove 72 are respectively arranged on two sides of the socket jack of the PDU device body 1, the first groove 71 and the second groove 72 are parallel to each other, two clamping plates 73 with length directions perpendicular to the length direction of the first groove 71 are arranged on the first groove 71 and the second groove 72, the two clamping plates 73 are parallel to each other, two protrusions are arranged at the bottom of the clamping plates 73 and respectively inserted into the first groove 71 and the second groove 72, and the two protrusions are respectively connected with one ends of the first groove 71 and the second groove 72 through elastic members 63. When inserting the plug into the socket, adjust the distance between two grip blocks 73 through removing grip block 73 in order to adapt to the not plug of equidimension, insert behind the plug under the effect of elastomeric element 63 grip block 73 respectively supports the both sides of plug, and the one side that two grip blocks 73 are relative is the rough surface for increase and the plug between the relative frictional force, thereby effectively prevent that the unexpected condition that drops of plug from taking place.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an intelligence PDU device, includes PDU device body, its characterized in that, this internal circuit board, sensor module, first relay, temperature control subassembly of being provided with of PDU device, the integration has main control chip and communication module on the circuit board, the circuit board is connected with the main circuit electricity of PDU device, first relay series connection is in the main circuit to be connected with the circuit board electricity through relay drive circuit, sensor module includes current sensor, voltage sensor and temperature and humidity sensor, current sensor, voltage sensor are used for measuring the electric current and the voltage of main circuit respectively, and current sensor, voltage sensor and temperature and humidity sensor respectively with circuit board signal connection.

2. The intelligent PDU device of claim 1, wherein the temperature control assembly comprises a semiconductor refrigeration sheet, a contact base, a heat pipe and a second relay, the heat pipe is arranged around the inner side wall of the PDU device body, the surface of the heat pipe is attached to the contact base, the contact base is attached to the cold end of the semiconductor refrigeration sheet, the semiconductor refrigeration sheet is electrically connected with the second relay, and the second relay is electrically connected with the circuit board through a relay driving circuit.

3. The intelligent PDU device of claim 2 wherein the semiconductor cooling fins have heat sinks on their hot ends, the heat sinks having fans, and the PDU device body has heat sinks on its side walls to accommodate the fans.

4. The intelligent PDU device of claim 3 wherein a thermally conductive silicone grease is disposed between the heat sink and the hot end of the semiconductor cooling plate.

5. The intelligent PDU device of claim 1 wherein an insertion detection mechanism is disposed in the socket of the PDU device body, the insertion detection mechanism comprises a piezoelectric sensor and an insulating plate, the bottom of the socket is provided with a groove, the piezoelectric sensor is disposed at the bottom of the groove, the insulating plate is disposed at the top of the groove and connected to the sensing end of the piezoelectric sensor through an elastic component, and the piezoelectric sensor is connected to the circuit board through a signal.

6. The intelligent PDU device of claim 1 wherein two sides of the receptacle of the PDU device body are respectively provided with a first groove and a second groove, the first groove and the second groove are respectively provided with two clamping plates with length directions perpendicular to the length direction of the first groove, and the clamping plates can move along the length direction of the first groove.

7. The intelligent PDU device of claim 6 wherein the clamping plate is connected to one end of each of the first and second grooves by a resilient member.