CN101820213B - Insulating gasket for laminated bus of high-power current converting device, manufacture method thereof and composite coating equipment - Google Patents
Insulating gasket for laminated bus of high-power current converting device, manufacture method thereof and composite coating equipment Download PDFInfo
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- CN101820213B CN101820213B CN 201010163684 CN201010163684A CN101820213B CN 101820213 B CN101820213 B CN 101820213B CN 201010163684 CN201010163684 CN 201010163684 CN 201010163684 A CN201010163684 A CN 201010163684A CN 101820213 B CN101820213 B CN 101820213B
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Abstract
The invention relates to an insulating gasket for a laminated bus of a high-power current converting device, a manufacture method thereof and composite coating equipment. The insulating gasket for a laminated bus comprises a diaphragm, wherein the diaphragm comprises five layers of materials; the middle layer is an insulating film layer, and both sides of the insulating film layer are provided with non-woven cloth layers; the non-woven cloth layers are formed by compounding epoxy adhesive on both side surfaces of the insulating film layer; and the rest two layers are epoxy adhesive layers coated on the outer side surfaces of the two non-woven cloth layers. The invention has the advantages of easy acquisition of raw materials, simple and convenient manufacture process, small thickness of the insulating layer, good performance of the laminated bus, good process performance, current impact resistance, high pressure resistance, strong binding force after the insulating layer and the bus are laminated, convenient lamination of the laminated bus and capability of meeting the severe environmental condition of the laminated bus.
Description
Technical field
The present invention relates to a kind of insulating gasket for laminated bus of high-power current converting device and manufacture method thereof and composite coating equipment.
Background technology
Laminated bus of high-power current converting device is based on Theory of Electromagnetic Field, and line is made flat cross section, under same cross section, to do to such an extent that get over Bao Yuekuan, its stray inductance is less, flow through opposite electric current in adjacent wires, its magnetic field cancellation also can make stray inductance reduce.High-power laminated bus is to be stacked together with the copper bar form of Bao Youkuan again, material with very thin high insulation resistance between each layer is hot pressed into one, between the whole bus utmost point apart from uniformity, to reduce mutual inductance, each layer copper bar all at needed terminal position place with the reliable insulation of other layers draw, make have a different potentials terminal expression at grade so that all devices in main circuit are attached thereto.The high-power laminated bus structure of this integral body can be born the tangential stress of hundreds of kilograms, can bear the voltage of thousands of volts between its conductive electrode.Use high-power laminated bus that the modules such as IGBT and rectifying tube, radiator, capacitor and gate driver circuit are combined, high-power laminated bus is to complete with different terminals and plug connector etc. from connection between device, make the contact surface and the contact resistance between bus that are connected very little, also make stray inductance become order of magnitude ground to reduce, thereby make the overvoltage stress drop of Ldi/dt to minimum, guarantee that power electronic equipment is operated in optimum state.Laminated bus of high-power current converting device has vast potential for future development with the performance characteristics of the excellences such as its low inductance, simple installation.High-power laminated bus can be widely used in electric power and mix the power conversion module etc. of traction, electric traction equipment, cellular based communication, base station, telephone switching system, catenet equipment, big-and-middle-sized computer, power switch system, welding system, military equipment system, electricity generation system, electrical equipment.
For satisfying the performance requirement of laminated bus of high-power current converting device, insulating cell must satisfy following requirement: 1, thickness of insulating layer is thin, and insulating barrier is thinner in theory, and the performance of laminated bus is better.2, processing performance is good, can facilitate laminating of laminated bus.3, good electric property must have good electric property though insulating barrier is thin.4, mechanical performance is excellent, requires cohesive force strong after insulating barrier and bus laminate.5, environmental resistance is excellent, and insulating cell must be able to satisfy laminated bus rugged environment condition, comprises salt fog, mould, damp and hot etc.
Summary of the invention
An object of the present invention is: provide that a kind of thickness of insulating layer is thin, processing performance, electric property, mechanical performance and environmental resistance, as the insulating gasket for laminated bus of high-power current converting device of salt spray resistance, anti-mould, the contour performance of wet-heat resisting.
Another object of the present invention is: a kind of manufacture method of making insulating gasket for laminated bus of high-power current converting device is provided.
A further object of the invention is: a kind of composite coating equipment of making insulating gasket for laminated bus of high-power current converting device is provided.
The technical scheme of insulating gasket for laminated bus of high-power current converting device of the present invention is: it is comprised of the barrier film that five layer materials consist of, and in the middle of it, one deck is insulating thin layer, and the both sides of this insulating thin layer are nonwoven layer; Described nonwoven layer is to be compounded on insulating thin layer two sides with epoxy adhesive; All the other are two-layer is the epoxy adhesive layer that is coated with on the lateral surface of two nonwoven layer.
Described insulating gasket for laminated bus, its insulating thin layer are the PET film.
Described insulating gasket for laminated bus, its insulation film layer thickness is less than or equal to 0.075mm.
Described insulating gasket for laminated bus, the outer surface of its nonwoven layer are smooth, shiny surface.
Described insulating gasket for laminated bus, the membrane thicknesses that its five layer material consists of is less than or equal to 0.2mm.
Described insulating gasket for laminated bus, the barrier film puncture voltage that its five layer material consists of is greater than 10KV.
The manufacture method technical scheme of a kind of insulating gasket for laminated bus of high-power current converting device of the present invention the steps include: at first insulation film and nonwoven fabrics to be made strip; Then on composite coating machine, nonwoven layer is being compounded in epoxy adhesive on insulating thin layer two sides; And the lateral surface coating epoxy adhesive layer in nonwoven layer; After coating epoxy adhesive layer, that epoxy adhesive layer outer surface is smooth; Enter at last drying machine drying.
A kind of composite coating equipment technical scheme of making insulating gasket for laminated bus of high-power current converting device of the present invention, it successively order installation component and device comprise: an insulation film coating conveyer (6), the insulation film reel, nonwoven fabrics reel A, head, nonwoven fabrics coating conveyer, nonwoven fabrics reel B, heater, the coating of epoxy adhesive layer and flattening device, drying unit, wrap-up; Described head includes head air exhauster and die heating device; Described drying unit includes baking oven and air exhauster; The coating of described epoxy adhesive layer with flattening device by the spray equipment of epoxy adhesive and the epoxy adhesive layer flattening device after being coated with form.
The principle of technical scheme that the present invention adopts is: insulation film has the advantages that thickness is little, performance is high; Though and nonwoven fabrics does not have very high insulation property, but have the absorption adhesive and increase that liner stretches and the function of buckling strength, insulation film and non-woven fabric compounded after insulating material more be convenient to the bonding that laminates of itself and laminated bus after adsorbing at gluing of nonwoven fabrics.
Prepare laminated bus simple process, excellent performance and because interfloor distance is little, so final laminated bus inductance is little with laminated bus insulating cell of the present invention.
The technology of the present invention effect is remarkable:
1, thickness of insulating layer is thin, and the performance of laminated bus is good.
2, processing performance is good, can facilitate laminating of laminated bus.
3, good electric property, the insulating barrier interfloor distance is little, anti-rush of current, withstand voltage height.
4, mechanical performance is excellent, and it is strong that insulating barrier and bus laminate rear cohesive force, with the adhesion strength of copper greater than 10MP.
5, environmental resistance is excellent, can satisfy laminated bus rugged environment condition, comprises salt fog, mould, damp and hot etc.
6, easy, the special equipment of manufacture method can produce the high laminated bus insulating cell of quality.
Description of drawings
Fig. 1 is insulating gasket for laminated bus of high-power current converting device of the present invention cross section enlarged diagram.
Fig. 2 is the composite coating equipment composition diagram that the present invention makes insulating gasket for laminated bus of high-power current converting device.
In figure, the name of each mark is called:
The 1-insulating thin layer; 2,3-nonwoven layer; 4,5-epoxy adhesive layer; 6-insulation film coating conveyer; 7-insulation film reel; The 8-insulation film; 9-nonwoven fabrics reel A; The 10-nonwoven fabrics; The 11-head; 11.1-head air exhauster; 11.2-die heating device; 12-nonwoven fabrics coating conveyer; 13-nonwoven fabrics reel B; The 14-nonwoven fabrics; The 15-heater; The coating of 16-epoxy adhesive layer and flattening device; The 17-drying unit; 17.1-baking oven; 17.2-air exhauster; The 18-wrap-up.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Embodiment 1:
A kind of insulating gasket for laminated bus of high-power current converting device, it is comprised of the barrier film that five layer materials consist of, and in the middle of it, one deck is insulating thin layer 1, and the both sides of this insulating thin layer 1 are nonwoven layer 2,3; Described nonwoven layer 2, the 3rd is compounded on insulating thin layer 1 two sides with epoxy adhesive; All the other are two-layer is the epoxy adhesive layer 4,5 that is coated with on the lateral surface of two nonwoven layer; Described insulating thin layer 1 is the PET film.Insulating thin layer 1 thickness is less than or equal to 0.075mm.The present embodiment thickness is 0.05mm; Described nonwoven layer 2,3 outer surface are smooth, shiny surface; The membrane thicknesses that five layer materials consist of is less than or equal to 0.2mm, and the present embodiment thickness is 0.15mm.The barrier film puncture voltage that five layer materials consist of is greater than 10KV, the barrier film puncture voltage 30KV of the present embodiment.
Embodiment 2:
Different from above-described embodiment is that insulating thin layer 1 thickness of the present embodiment is 0.075mm; The membrane thicknesses that five layer materials consist of is 0.2mm.The barrier film puncture voltage that five layer materials consist of is greater than 10KV, the barrier film puncture voltage 40KV of the present embodiment.
Embodiment 3:
Different from above-described embodiment is that insulating thin layer 1 thickness of the present embodiment is 0.025mm; The membrane thicknesses that five layer materials consist of is 0.15mm.The barrier film puncture voltage that five layer materials consist of is greater than 10KV, the barrier film puncture voltage 20KV of the present embodiment.
Embodiment 4:
A kind of manufacture method of insulating gasket for laminated bus of high-power current converting device the steps include: at first insulation film and nonwoven fabrics to be made strip; Then on composite coating machine, nonwoven layer 2,3 use epoxy adhesives are being compounded on insulating thin layer 1 two sides; And at nonwoven layer 2,3 lateral surface coating epoxy adhesive layer 4,5; After coating epoxy adhesive layer 4,5, that epoxy adhesive layer outer surface is smooth; Enter at last drying machine drying.
Embodiment 5:
A kind of composite coating equipment of making insulating gasket for laminated bus of high-power current converting device, it successively order installation component and device comprise: an insulation film coating conveyer 6, insulation film reel 7, nonwoven fabrics reel A9, head 11, nonwoven fabrics coating conveyer 12, nonwoven fabrics reel B13, heater 15, the coating of epoxy adhesive layer and flattening device 16, drying unit 17, wrap-up 18; Described head 11 includes head air exhauster 11.1 and die heating device 11.2; Described drying unit 17 has baking oven 17.1 and air exhauster 17.2; The coating of described epoxy adhesive layer with flattening device 16 by the spray equipment of epoxy adhesive and the epoxy adhesive layer flattening device after being coated with form.
Claims (2)
1. an insulating gasket for laminated bus of high-power current converting device, is characterized in that, it is comprised of the barrier film that five layer materials consist of, and in the middle of it, one deck is insulating thin layer (1), and the both sides of this insulating thin layer (1) are nonwoven layer (2,3); Described nonwoven layer (2,3) is to be compounded on insulating thin layer (1) two sides with epoxy adhesive; All the other are two-layer is the epoxy adhesive layer (4,5) that is coated with on the lateral surface of two nonwoven layer; The outer surface of described nonwoven layer (2,3) is smooth, shiny surface; Described insulating thin layer (1) is the PET film; The manufacturing step of insulating cell is: at first insulation film and nonwoven fabrics are made strip; Then on composite coating machine, nonwoven layer (2,3) is being compounded in epoxy adhesive on insulating thin layer (1) two sides; And the lateral surface coating epoxy adhesive layer (4,5) in nonwoven layer (2,3); At coating epoxy adhesive layer (4,5) afterwards, epoxy adhesive layer outer surface is smooth; Enter at last drying machine drying;
Described insulating thin layer (1) thickness is less than or equal to 0.075mm; The membrane thicknesses that described five layer materials consist of is less than or equal to 0.2mm; The barrier film puncture voltage that described five layer materials consist of is greater than 10KV.
2. composite coating equipment for the manufacture of insulating gasket for laminated bus of high-power current converting device claimed in claim 1, it is characterized in that, it successively order installation component and device comprise: an insulation film coating conveyer (6), insulation film reel (7), nonwoven fabrics reel A(9), head (11), nonwoven fabrics coating conveyer (12), nonwoven fabrics reel B(13), heater (15), the coating of epoxy adhesive layer and flattening device (16), drying unit (17), wrap-up (18); Described head (11) includes head air exhauster (11.1) and die heating device (11.2); Described drying unit (17) includes baking oven (17.1) and air exhauster (17.2); The coating of described epoxy adhesive layer with flattening device (16) by the spray equipment of epoxy adhesive and the epoxy adhesive layer flattening device after being coated with form.
Priority Applications (1)
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CN 201010163684 CN101820213B (en) | 2010-04-29 | 2010-04-29 | Insulating gasket for laminated bus of high-power current converting device, manufacture method thereof and composite coating equipment |
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CN 201010163684 CN101820213B (en) | 2010-04-29 | 2010-04-29 | Insulating gasket for laminated bus of high-power current converting device, manufacture method thereof and composite coating equipment |
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CN101820213A CN101820213A (en) | 2010-09-01 |
CN101820213B true CN101820213B (en) | 2013-06-19 |
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CN104836177B (en) * | 2015-05-29 | 2017-05-24 | 金海新源电气江苏有限公司 | Preparation method of insulating separator plate for bus duct |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1519341A (en) * | 1974-08-16 | 1978-07-26 | Siemens Ag | Apparatus incorporating an insulating member |
CN101180182A (en) * | 2005-05-20 | 2008-05-14 | 日东新兴有限公司 | Multilayer sheet |
CN101252257A (en) * | 2008-02-19 | 2008-08-27 | 上海新时达电气有限公司 | Stack bus bar edge structure |
-
2010
- 2010-04-29 CN CN 201010163684 patent/CN101820213B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1519341A (en) * | 1974-08-16 | 1978-07-26 | Siemens Ag | Apparatus incorporating an insulating member |
CN101180182A (en) * | 2005-05-20 | 2008-05-14 | 日东新兴有限公司 | Multilayer sheet |
CN101252257A (en) * | 2008-02-19 | 2008-08-27 | 上海新时达电气有限公司 | Stack bus bar edge structure |
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Effective date of registration: 20151009 Address after: 430064, Wuhan City, Hubei province Hongshan District Lion Hill Street South Lake (steam School Village) Patentee after: Wuhan Changhai electric propulsion and chemical power supply Co., Ltd. Address before: 430064 Hubei City, Hongshan District, lion street, steam school, a village Patentee before: No.712 Inst., China Ship Heavy Industry Group Co. |