CN2834007Y

CN2834007Y - Intelligent frequency conversion module

Info

Publication number: CN2834007Y
Application number: CNU2005200853941U
Authority: CN
Inventors: 乜连波
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-14
Filing date: 2005-07-14
Publication date: 2006-11-01
Anticipated expiration: 2015-07-14

Abstract

The utility model relates to an intelligent frequency conversion module, which is composed of a shell, a control circuit, a control panel, a main circuit, a communication interface and sealing filler, wherein the main circuit is sealed in the bottom of the module; the control circuit integrates and seals all circuits in the middle part of the module; the control panel is arranged on the upper part of the module; the three parts are connected via special socket connectors and sealed on the shell. The control panel made into an embedded structure can be embedded in the module body into integration. The utility model adopts the modular integrated design technology, seals all components of the body part of a frequency converter and an inverter in the module, embeds software systems into a modular single chip computer, and realizes the goal of modular device, intellectualized module and integral seal. The utility model used for occasions of frequency control and power supply transformation for a motor has the advantages of small size, light weight, convenient installation and operation, favorable corrosion resistance and shockproof performance, low cost, long service life and high reliability.

Description

Intelligent transducer module

Technical field

The utility model relates to a kind of ac motor variable frequency speed regulating device and inverter power supply device, a kind of specifically intelligent transducer module.

Background technology

We know that motor is used very extensive in the national economy every profession and trade, at present China's motor total installation of generating capacity is more than 400,000,000 kilowatt, its year power consumption be about 15,000 hundred million kilowatt hours, account for the 65-70% of national then gross generation 21,870 hundred million kilowatt hours.Wherein most of motor are in the light running state for a long time.Particularly installed capacity accounts for the motor of total installation of generating capacity blower fan over half, load of the pumps, wherein 70% adopts windscreen or valve regulated flow, and running status is very poor.These motor power consumptions account for 31% of national power consumption, account for 50% of industrial electric weight.Therefore, for saving the energy, China is in the energy conservation program of the tenth to the 11 " five year plan ", " electric system is energy-conservation " classified as key project, and development adjustable speed motor drives for energy conservation and electric-electronic power saving technology progressively realize the economical operation of motor, blower fan, pump apparatus and system, planned 2010, the energy-conservation 12%-15% of electric system, annual saves energy 1,000 hundred million kilowatt hours, the annual energy output in 2 years of Three Gorges Projects after being equivalent to build up.So, use converter technique and undergo technological transformation significant existing blower fan, load of the pumps.At present, develop rapidly along with science and technology, reaching its maturity of power semiconductor technologies, the application of converter technique has obtained development fast, not only be applied at blower fan, pump-type load, and in industrial machineries such as milling train, converter, roller-way, incinerator, crane, dump truck, hoist engine, wire drawing machine, batcher, mixer, pulverizer, spinning-drawing machine, oil pumper, refrigerator, use in a large number, what is more important is applied in the household electrical appliance such as refrigerator, air-conditioning widely.

Inverter power supply device is a kind of electric power conversion apparatus at present commonly used, is generally used for the voltage transformation of straight-power conversion of exchanging and friendship-exchange, and is of many uses.

But present frequency conversion, the enforcement of inversion transformation technique all are to realize with the device of bin mode, are made up of multiple unit modular structures such as Single-chip Controlling unit, input and output and display unit, excitation driver element, sensing protected location and power semiconductor switching elements.Volume heaviness, wiring complexity are installed and used inconvenience, are unfavorable for the raising of reliability, are not suitable for occasions such as dust, humidity, burn into be inflammable, explosive.The product cost of particular design is higher, is unfavorable for promoting the use of.

Summary of the invention

Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple structure is provided, and volume is little, and is in light weight, easy to install, and anti-corrosion dustproof, cost is low, the intelligent transducer module that the life-span is long, reliability is high.It can realize controlling the mentality of designing of intellectuality, packaging solidization, structural module.

The technical scheme in the invention for solving the above technical problem is: a kind of intelligent transducer module; it mainly comprises housing; control circuit; control panel; main circuit; interface; sealing filler; it is characterized in that: control circuit includes microprocessor; analog to digital conversion circuit and memory circuit; drive circuit; the sensing protective circuit; feedback circuit; communication port; control panel includes keyboard; show; regulation and control knob and communication interface; main circuit includes connection electrode; DBC electronic ceramic sheet; substrate; the igbt chip assembly; main circuit is encapsulated in module bottom; the igbt chip assembly welds together by DBC electronic ceramic sheet and substrate; control circuit is with the integrated module middle part that is encapsulated in of foregoing circuit; control panel is on the top of module; three parts connect by special-purpose connector; be encapsulated in the housing, the housing cavity is filled by insulated enclosure silica gel and epoxy resin filler.

The utility model control panel is made damascene structures, but the merge module main body is integral use, and also extensible independent use was finished with being connected by cable of main body.

The utility model is owing to adopt the integrated designing technique of modularization, and whole components and parts of the main part of frequency converter are encapsulated in the module, realized apparatus moduleization, module intellectuality, encapsulated incorporate purpose.By the microcomputer that is encapsulated in inside modules by predefined program; according to the sensing circuit feedback signal; variation by sinusoidal pulse width modulation pattern (SPWM) control output voltage, frequency drags load, and has the automatic acquisition process of signal data, process control automatically, autodiagnosis, self-control, self-protection function.Against existing technologies, the utility model volume is little, in light weight, easy to install, and anti-corrosion shockproof properties is good, and cost is low, the life-span is long, reliability is high.It is the intelligent transducer module that integrates power semiconductor modular application technology, computer intelligence control technology and advanced person's sensing detection technology.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of the utility model Fig. 1

Fig. 3 is that circuit of the present utility model is formed theory diagram.

Among the figure 1, housing, 2, control panel, 3, control circuit, 4, main circuit; 5, sealing filler, 6, function key, 7, display panel; 8, input interface, 9, connection electrode, 10, the IGBT assembly; 11, DBC potsherd, 12, substrate, 13, microprocessor; 14, change-over circuit, 15, memory, 16, PWM drives; 17, sensing protective circuit, 18, feedback circuit, 19, communication port.

Embodiment

From Fig. 1, Fig. 2 as can be seen, a kind of intelligent transducer module, it mainly comprises housing 1, control panel 2, control circuit 3, main circuit 4, sealing filler 5.Control panel 2 includes function key 6, display panel 7, input interface 8, its can be embedded in housing 1 above, also can separate use with housing 1.

As can be seen, control circuit 3 comprises microprocessor 13, change-over circuit 14, memory 15, PWM driving 16, sensing protective circuit 17, feedback circuit 18, communication port 19 etc. from Fig. 1, Fig. 3.The operation principle of each circuit is same as the operation principle of universal frequency converter in the above-mentioned module, belongs to prior art, and this does not describe in detail.Above-mentioned composition concentrates on the pcb board in the mounted on surface mode, is installed in the middle part of housing 1.

The utility model main circuit 4 comprises connection electrode 9, IGBT assembly 10, DBC potsherd 11, substrate 12, is encapsulated in the bottom in the housing 1, is connected with connection electrode 9 on the IGBT assembly 10, welds together by DBC potsherd 11 and substrate 12 down.DBC electronic ceramic sheet 11 plays electric insulation and heat conducting effect.Housing 1 internal cavities is filled by sealing filler 5.Control panel 2 is connected with control circuit 3 by built-in cable, and control circuit 3 is connected with main circuit 4 by special-purpose connector.Connection electrode 9 is used for the electrical connection between module and power supply and the load, the carrying that substrate 12 is mainly used in main circuit with being connected of external radiator, communication port 19 is used for the communication contact with extraneous computer management system.Routine call, parameter input and function that function key 6 is used in the microprocessor 13 are regulated.Display panel 7 is used to show the operating state etc. of parameter value, module and the load of input and output.

The utility model housing 1 is made up of two parts up and down, top is used to embed control panel 2 and encapsulation control circuit 3, the bottom is used for the encapsulation of main circuit 4, and two-part up and down electrical connection is connected by the connector of special use, mechanical attachment by its with the primary and secondary bayonet socket and built-in screw fix.

The function of the utility model module is mainly determined by the software of merge module.Software can be the special-purpose software of variable frequency control single-chip microcomputer.

The utility model has following characteristics:

1, will have that the device (as frequency converter) of certain function is integrated to be packaged into a module, good topological structure design has realized the purpose of apparatus moduleization, volume miniaturization.Design concept according to electronic building blocks formula modular structure, use the CAD design optimizing, earlier frequency-converter device is optimized the module that is designed to some unit, again with the integrated design in these unit together according to power semiconductor integrated circuit (IC) design principle, comprised the optimization topological structure design of structure miniization, microelectronics technology design and the IGBT constant power semiconductor switching component of large-scale components and parts, the photoelectricity of sensing, magnetoelectricity switch technology etc.

2, in module, introduce the Single-chip Controlling notion, use embedded software, realized the intelligentized purpose of module.

3, high-power, the high-quality welding of multiple standard chip group is technical, implements advanced " ZKH+H " chips welding technology and ultrasonic wave microscan Dynamic Non-Destruction Measurement.Quality, the production efficiency of product are promoted greatly.The harmless weld defect detection technique of computer controlled ultrasonic microscan can be checked intuitively, fast in the production scene welding and package quality can significantly improve the accuracy and the speed of detection, is applicable to the high-quality check of batch process.The place of ging wrong be can diagnose fast and accurately for the product that goes wrong, product design and technologic defective improved fast.

4, Embedded control panel structure design, but the merge module main body is integral use, and also extensible independent use was finished with being connected by cable of main body, and module can be used separately, the online use of other control unit that neutralizes of also implantable cabinet.

5, the structural design of module not only will be considered function admirable, also will consider versatility emphatically.The structural design of this module is the combined structure design of two parts up and down of housing 1, top is used to embed control panel 2 and encapsulation control circuit 3, the bottom is used for the encapsulation of main circuit 4, upper body makes up with the lower case of encapsulation different capacity main circuit, can obtain the module of different capacity, be beneficial to specialized batch process the in batches.Avoided because electronic installation, device category are various, power kind complexity, requirement has the module of numerous different current specification corresponding with it, this just forces module factory to produce in a large number but the less again module of single relatively kind quantity, account for pressure fund, storehouse, increase the drawback of production, management cost.This design is very beneficial for the batch process of module and reduces cost.

Claims

1. intelligent transducer module; it mainly comprises housing; control circuit; control panel; main circuit; interface; sealing filler; it is characterized in that: control circuit includes microprocessor; analog to digital conversion circuit and memory circuit; drive circuit; the sensing protective circuit; feedback circuit; communication port; control panel includes keyboard; show; regulation and control knob and communication interface; main circuit includes connection electrode; DBC electronic ceramic sheet; substrate; the igbt chip assembly; main circuit is encapsulated in module bottom; the igbt chip assembly welds together by DBC electronic ceramic sheet and substrate; control circuit is with the integrated module middle part that is encapsulated in of foregoing circuit; control panel is on the top of module; three parts connect by special-purpose connector; be encapsulated in the housing, the housing cavity is filled by insulated enclosure silica gel and epoxy resin filler.

2. intelligent transducer module according to claim 1, it is characterized in that: control panel is damascene structures, and its merge module main body is integral.

3. intelligent transducer module according to claim 1 is characterized in that: housing divides two parts up and down, and top embeds control panel and encapsulates control circuit, and the bottom is packaged with main circuit.