CN201290064Y

CN201290064Y - Control calculation unit for combined sealing module of electric power converting system

Info

Publication number: CN201290064Y
Application number: CNU2008203017856U
Authority: CN
Inventors: 韩磊光; 韩知躬
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2009-08-12
Anticipated expiration: 2018-08-07

Abstract

The utility model discloses a control-calculation unit device for matching with electric energy power conversion equipment, which is independently encapsulated to be a module as an independent unit device, so as to realize modularization of a unit circuit board, can conveniently form an complete machine of the electric energy power conversion equipment together with other units, and can be conveniently repaired and replaced in use. All chips and other electric elements are arranged on a modularized printed circuit board, and connectors include a power supply connector, a control signal output connector, a display and keyboard circuit connector, a download debugging connector, an analog signal input connector and a communication interface connector. A circuit unit is positioned and fixed in an encapsulation casing, each electrical interface is mounted in a corresponding opening position reserved on the surface of the encapsulation casing and subjected to necessary seal treatment, the residual space in the encapsulation casing is filled with solidifiable insulating fluid material, so as to form a combined module of the control-calculation unit device after solidification.

Description

The control and calculation unit of combined sealing module of electric power conversion system

Technical field

The utility model relates to a kind of control computation unit device of electric energy power converter, particularly adopt data processor (DSP) or microprocessor (MPU) to carry out the cell arrangement that the control of electric energy power transfer is calculated with Direct Digital frequency synthesis (DDS) technology, the printed circuit board (PCB) that it comprises the electronic component of control computation unit circuit needs and these elements are installed, this cell arrangement is connected by the equipment that is electrically connected outside other unit of interface and system and the system, and then is combined into electric energy power conversion system equipment.

Background technology

The electric energy power converter, as equipment such as inverter, variable frequency power supply, heating power supplies, be use always a kind of form of power is converted to another form of power to satisfy the electric power equipment of different needs, as the 50Hz civil power being converted to the variable frequency power supply of different frequency scope sine wave, also as accumulator DC being converted to the inverter of different frequency scope sine wave.With the variable frequency power supply is example, and the electric energy power converter generally comprises control computation unit 1, high power switch unit 2, ac-dc conversion unit 3, collection of simulant signal feedback unit, cell mesh such as display and keyboard input unit.This class electric energy power converter has gradually adopted digital signal processor (DSP-Digital Signal Processer) or microprocessor (MPU-Micro-Processing Unit) to carry out the electric energy power transfer with Direct Digital frequency synthesis (DDS-Direct Digital FrequencySynthesizing) technology, the control computation unit function is to receive control command, calculate the output control signal, the electric energy power transfer is finished in the collaborative work of control high-power electronic switch.The way of realization of present control computation unit is that the partial circuit with other unit is produced on the same printed circuit board (PCB), by the printed panel lead be electrically connected interface and electric energy power conversion system in other unit and be connected with miscellaneous equipment outside the system, be integrated into complete machine.Chinese patent ZL200620170205, Chinese patent ZL 200720064002, Chinese patent application 200510104244, Chinese patent application 200710026878 disclose the electric energy power converter of invention separately, and these equipment all comprise the control computation unit device.

The control computation unit that adopts at present the electric energy power converter of Direct Digital frequency synthesis (DDS) technology is that some other element circuits with equipment together are produced on the printed circuit board, and the electronic component on the circuit board is exposed in the air.The big element of such element circuit area is more, during work the phase mutual interference strong, it is numerous and diverse relatively to manufacture process, reliability is low relatively, the job failure rate is higher under high dust high humidity environment, can't the direct substitution maintenance when being out of order.

The utility model content

The technical problems to be solved in the utility model provides a kind of control computation unit device of supporting electric energy power converter, be encapsulated as module separately as the separate unit device, when reality is used, it is installed in electric energy power converter inside, by being electrically connected other unit in interface and the electric energy power conversion system and being connected of module surface, be combined into the electric energy power converter with miscellaneous equipment outside the system.

For solving the problems of the technologies described above, the utility model is that control computation unit is made printed circuit board (PCB) separately, the peripheral cell of installation data processor (DSP) or microprocessor (MPU) chip and chip operation necessity on printed circuit board (PCB), also install on the printed circuit board (PCB) such as external program and data memory chip, chip is adjusted in the power conversion voltage stabilizing, elements such as peripheral circuit chips such as analog signal conditioner circuit and resistor-capacitor, with other unit in the electric energy power conversion system and with system outside host computer or the miscellaneous equipment communication interface of getting in touch, incoming interface is write by system, display and keyboard interface, analog quantity sampling input interface, the control signal output interface, electric interfaces such as power supply interface and printed circuit board (PCB) are connected or are installed on the printed circuit board (PCB) by fly line is unsettled, install and debugging after circuit unit can finish the function of control computation unit.Circuit unit placement after installing and debugging is fixed in the encapsulating shell, each electric interfaces is installed in the respective openings position of reserving on the encapsulating shell surface and carries out necessary encapsulation process, with curable dielectric fluid material remaining space in the encapsulating shell is full of, becomes the control computation unit apparatus module after solidifying.

Adopt such sealed package, the electronic component of control computation unit does not contact with outside air, moisture, dust, and the environmental corrosion resisting ability is improved; The insulating material that electronic component is cured surrounds fixing, and reliability and the anti-transport capacity of control computation unit under vibration or vehicle-carried mobile condition is improved; When encapsulating shell adopted metal material, the ability of the anti-electromagnetic interference of control computation unit was improved.

Control computation unit is made into and is standalone module, realizes the part or the modularization of element circuit plate, can become electric energy power converter complete machine easily with other unit combination in device fabrication, in use can keep in repair alternative very easily.

Control computation unit is made into and is standalone module, opened up control computation unit from circuit board and combination of software direction to the development of general purpose accessory assembly, help independently control computation unit part series of products of Development and Production, help electric energy power converter entire machine design personnel's design selection and improve design efficiency.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is the composition schematic diagram of general electric energy power converter.

Fig. 2 forms schematic diagram for the control computation unit of electric energy power converter of the present invention.

Fig. 3 is the generalized section and the schematic top plan view of control and calculation unit of combined sealing module of the present invention.

Embodiment

Independently on the control computation unit printed circuit board (PCB) 16 whole chips and all the other electronic components are being installed, are being comprised communication IC chip 4, external program and data memory chip 5, stabilized voltage power supply chip 6, DSP (or MPU) chip 7.Electrical cnnector with can adopt being connected of printed circuit board (PCB) the fly line mode not the unsettled connection of fixed position as 14 form, the connector that has also can adopt the form that is installed in fixedly connected on the printed circuit board (PCB) as 15, connector comprises power supply connector 8, control signal out connector 9, show and keyboard circuit connector 10, download debugging connector 11, analog signal input connector 12, communication interface connector 13.Carry out after the checkout debugging finishing the control computation unit circuit that install to connect, placing it in connector reserves in the package casing 17 of perforate also fixing, each connector is installed in the respective openings position of reserving on the encapsulating shell surface and carries out necessary encapsulation process, and circuit board fixing with connector in encapsulating shell can adopt screw to fix in the installation of encapsulating shell opening part, rivet is fixed, bayonet socket is fixed, it is fixing to peg graft, glued joint the whole bag of tricks such as fixing.The electrical connection interface position on module surface can be in the optional position of module outer surface, even can be in mouthful scope that pours into of fluid encapsulating material.The connector of installing can protrude module package shell surface, also can be recessed into module encapsulating shell surface.Finish after encapsulating shell opening part mounted connector, curable dielectric fluid material is poured into encapsulating shell also remaining space in the encapsulating shell is full of.The sheathing material of coated module outer surface can be encapsulant or other nonmetallic materials of solidifying, and also can be the metal material with electromagnetic shielding action, or the combination of these two kinds of materials.The position that the dielectric fluid material pours into mouthful can be on any surface of encapsulating shell.Pour into after the dielectric fluid material, pouring into mouthful can be with other material shutoff, also can not shutoff, when not taking shutoff, treat the dielectric fluid material cured after natural shutoff pour into mouth.Control computation unit after the curing becomes unit module, can get in touch by connector with the element circuit of equipment other parts, and common combination becomes electric energy power converter complete machine, realizes the machine system function.

Such control and calculation unit of combined sealing module device has the reliability height, and environmental suitability is strong, and substitutability is good during the system equipment maintenance, the convenient characteristics such as electric energy power converter that design and conveniently be combined into different size.

The utility model is not limited to above-mentioned embodiment; as long as the control computation unit of electric energy power converter is made into independent solid state module form; and its electronic component is sealed in inside modules; connector is installed in the module surface; no matter module adopts which kind of physical dimension and which kind of shape; no matter connector quantity and shape are all among protection range of the present utility model.

Claims

[claim 1] a kind of control computation unit device that is used for the electric energy power conversion system, comprise master data processor (DSP) chip or master microprocessor (MPU) chip (7) and necessary peripheral cell, comprise communication chip (4), external program and data memory chip (5), stabilized voltage power supply chip (6), comprise peripheral circuits such as analog signal conditioner circuit, also comprise power supply connector (8), control signal out connector (9), show and keyboard circuit connector (10), download debugging connector (11), analog signal input connector (12), communication interface connector (13) etc., it is characterized in that, this control computation unit circuit has independently printed circuit board (PCB) (16), circuit board is sealed as the module of solid forms, each attachment unit interface of getting in touch with inner other unit of electric energy power conversion system or system outside is arranged on the module surface, connector comprises power supply connector (8), control signal out connector (9), show and keyboard circuit connector (10), download debugging connector (11), analog signal input connector (12), communication interface connector (13).
[claim 2] is characterized by according to the described control computation unit device of claim 1, and element circuit is encapsulated as independently solid state module device.
[claim 3] is characterized by according to the described control computation unit device of claim 1, and the electronic component of control computation unit and the circuit board of installation elements are encapsulated in the module, and except electrical connection interface, the module outside does not have exposed electronic component.
[claim 4] is characterized by according to the described control computation unit device of claim 1, and inside modules is filled the insulated enclosure material, the not exposed aerial electronic component of inside modules.
[claim 5] is according to the described control computation unit device of claim 1, it is characterized by, the sheathing material of coated module outer surface can be encapsulant or other nonmetallic materials of solidifying, and also can be the metal material with electromagnetic shielding action, or the combination of these two kinds of materials.
[claim 6] is characterized by according to the described control computation unit device of claim 1, and the electrical connection interface position on module surface can be in the optional position of module outer surface, and connector can protrude the module surface, also can be recessed into the module surface.