TW202303022A - Manufacturing method of vacuum valve - Google Patents

Manufacturing method of vacuum valve Download PDF

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TW202303022A
TW202303022A TW111106291A TW111106291A TW202303022A TW 202303022 A TW202303022 A TW 202303022A TW 111106291 A TW111106291 A TW 111106291A TW 111106291 A TW111106291 A TW 111106291A TW 202303022 A TW202303022 A TW 202303022A
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Taiwan
Prior art keywords
vacuum valve
manufacturing
end plate
insulating resin
side end
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TW111106291A
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Chinese (zh)
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TWI818443B (en
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仲田知裕
十鳥洋
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日商三菱電機股份有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/72—Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C2045/14459—Coating a portion of the article, e.g. the edge of the article injecting seal elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/682—Preformed parts characterised by their structure, e.g. form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0007—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7506—Valves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Details Of Valves (AREA)
  • Compressor (AREA)

Abstract

With the purpose of obtaining an inexpensive vacuum valve, the present invention provides a manufacturing method of vacuum valve which arranges in a mold (12, 14) an intermediate assembly body of vacuum valve obtained by respectively brazing and jointing a fixed side end plate (2) and a movable side end plate (3) onto two ends of a cylindrical insulating container (1), and molding-forms an insulating resin material on the periphery of the intermediate assembly body to form an insulating resin layer (9), wherein the area of an outer periphery of the fixed side end plate (2) is such formed that the load generated at a brazing part (10) between the insulating container (1) and the fixed side end plate (2) is less than a tolerant load of the brazing part (10) when the insulating resin material (13) is molded on the outer periphery of the intermediate assembly body.

Description

真空閥的製造方法Manufacturing method of vacuum valve

本發明係關於一種真空閥的製造方法。The invention relates to a manufacturing method of a vacuum valve.

以往，為了使真空閥之絕緣性能提升，會採用一種藉由絕緣樹脂對真空閥之外周部進行模製並予以覆蓋，使沿面長度增加而補強真空閥之外周部沿面之絕緣的手法。如上方式以絕緣樹脂對真空閥外周部進行模製之際，必須考慮加壓於真空閥之產生荷重，以往係採用將高溫且呈液狀之絕緣樹脂材料流入至鑄造模具，並藉由冷卻而使樹脂硬化之鑄造(參照例如專利文獻1)。 (先前技術文獻) (專利文獻) In the past, in order to improve the insulation performance of the vacuum valve, a method of molding and covering the outer peripheral part of the vacuum valve with insulating resin to increase the length of the creeping surface is used to reinforce the insulation of the outer peripheral part of the vacuum valve. When molding the outer periphery of the vacuum valve with insulating resin as above, the load generated by pressurizing the vacuum valve must be considered. In the past, a high-temperature and liquid insulating resin material was poured into the casting mold and cooled. Casting that hardens resin (see, for example, Patent Document 1). (Prior Art Literature) (patent documents)

專利文獻1：日本特開2013-93276號公報Patent Document 1: Japanese Patent Laid-Open No. 2013-93276

[發明所欲解決的課題][Problems to be Solved by the Invention]

然而，為了以絕緣樹脂對真空閥進行模製而採用之鑄造，雖在製造時對真空閥之產生荷重較少，但必須等待用以形成外周部而流入至模具之高溫樹脂冷卻為止。因此，為了製造一個真空閥，會有：以鑄造模具為首之製造設備的佔有時間增加，而使製造工期耗費約數小時至一天，製造週期長且製造成本高的課題。However, in the casting used to mold the vacuum valve with insulating resin, although the load on the vacuum valve is small during manufacture, it is necessary to wait until the high-temperature resin flowing into the mold to form the outer peripheral part cools down. Therefore, in order to manufacture one vacuum valve, there is a problem that the occupation time of the manufacturing equipment including the casting mold increases, and the manufacturing process takes about several hours to one day, resulting in a long manufacturing cycle and high manufacturing cost.

本案係揭示用以解決上述課題之技術者，其目的在於提供一種製造成本低廉之真空閥的製造方法。 [解決課題的手段] This case discloses the technology used to solve the above-mentioned problems, and its purpose is to provide a manufacturing method of a vacuum valve with low manufacturing cost. [means to solve the problem]

本案揭示一種真空閥的製造方法，係在模具內配置真空閥的中間組裝體，且將絕緣樹脂材料模製成型於前述中間組裝體之外周而形成絕緣樹脂層，該真空閥的中間組裝體係分別將固定側端板及可動側端板硬銲接合於圓筒狀之絕緣容器的兩端而形成真空容器，並且於前述真空容器內收納有固定側電極及可動側電極而構成者；該真空閥的製造方法係在將前述絕緣樹脂材料模製於前述中間組裝體之外周時，以使產生於前述絕緣容器與前述固定側端板之硬銲部的荷重比前述硬銲部之容許荷重小的方式，形成前述固定側端板之外周部的面積。 [發明效果] This case discloses a manufacturing method of a vacuum valve. The intermediate assembly of the vacuum valve is arranged in a mold, and an insulating resin material is molded on the outer periphery of the intermediate assembly to form an insulating resin layer. The intermediate assembly system of the vacuum valve The fixed-side end plate and the movable-side end plate are brazed and joined to the two ends of the cylindrical insulating container to form a vacuum container, and the fixed-side electrode and the movable-side electrode are accommodated in the aforementioned vacuum container; the vacuum The manufacturing method of the valve is to make the load generated at the brazed portion between the insulating container and the fixed side end plate smaller than the allowable load of the brazed portion when the insulating resin material is molded on the outer periphery of the intermediate assembly. In such a manner, the area of the outer peripheral portion of the aforementioned fixed-side end plate is formed. [Invention effect]

依據本案揭示之真空閥的製造方法，可製造一種可減少因對絕緣樹脂進行模製時之成型壓力而加壓於真空閥之硬銲部的荷重，且使製造週期短且低廉的真空閥。According to the manufacturing method of the vacuum valve disclosed in this case, it is possible to manufacture a vacuum valve which can reduce the load on the brazed part of the vacuum valve due to the molding pressure when molding the insulating resin, and make the manufacturing cycle short and inexpensive.

實施型態1 以下，針對本案之真空閥的製造方法，利用圖式進行說明。此外，在各圖中，針對相同或相當部分標記相同符號。 圖1係顯示藉由實施型態1之真空閥的製造方法而製造之真空閥整體之構成的剖視圖，圖2係顯示將圖1之A部予以放大的剖視圖。 Implementation Type 1 Hereinafter, the manufacturing method of the vacuum valve of this invention is demonstrated using drawing. In addition, in each figure, the same code|symbol is attached|subjected to the same or a considerable part. FIG. 1 is a cross-sectional view showing the overall configuration of a vacuum valve manufactured by implementing the vacuum valve manufacturing method of Embodiment 1, and FIG. 2 is an enlarged cross-sectional view showing part A of FIG. 1 .

在圖1中，真空閥100之構成係具備：由陶瓷等所構成的圓筒狀之絕緣容器1；被硬銲接合於絕緣容器1之兩端的固定側端板2及可動側端板3；固定於固定側端板2的固定側電極棒4；固定於固定側電極棒4之端部，且配置在絕緣容器1內的固定側電極5；經由波紋管(bellows)6以可接觸滑動之方式被支持在可動側端板3的可動側電極棒7；接合於可動側電極棒7之端部，且配置在絕緣容器1內的可動側電極8；以及對以BMC(Bulk Molding Compound(團狀塑模料):不飽和聚酯)材料為主材之絕緣樹脂材料進行模製成型而形成在外周的絕緣樹脂層9。 此外，絕緣容器1係藉由硬銲而接合在固定側端板2及可動側端板3而形成密閉之真空容器，如圖2所示，在該接合部中形成有屬於通常為μm等級之薄金屬膜的硬銲部10。並且，固定側電極5與可動側電極8係構成為：在絕緣容器1內部朝軸方向彼此相對向地配置，且可隨著可動側電極8之移動而與固定側電極5分離接合。 In FIG. 1, the vacuum valve 100 is composed of: a cylindrical insulating container 1 made of ceramics, etc.; a fixed side end plate 2 and a movable side end plate 3 that are welded to both ends of the insulating container 1; The fixed-side electrode rod 4 fixed on the fixed-side end plate 2; the fixed-side electrode 5 fixed on the end of the fixed-side electrode rod 4 and arranged in the insulating container 1; The movable side electrode rod 7 supported by the movable side end plate 3; the movable side electrode 8 which is joined to the end of the movable side electrode rod 7 and arranged in the insulating container 1; and the BMC (Bulk Molding Compound (Group) Shaped plastic molding material): unsaturated polyester) material as the main material of the insulating resin material is molded to form an insulating resin layer 9 on the periphery. In addition, the insulating container 1 is joined to the fixed-side end plate 2 and the movable-side end plate 3 by brazing to form a hermetically sealed vacuum container. As shown in FIG. Brazed portion 10 of thin metal film. Furthermore, the fixed side electrode 5 and the movable side electrode 8 are arranged to face each other in the axial direction inside the insulating container 1 , and can be separated and joined to the fixed side electrode 5 as the movable side electrode 8 moves.

利用圖3A、圖3B、圖3C說明藉由直壓成型來製造該種真空閥100之絕緣樹脂層9的步驟。 首先，如圖3A所示，分別將固定側端板2及可動側端板3硬銲接合在圓筒狀之絕緣容器1的兩端而形成真空容器，並且在真空容器內收納固定側電極5及可動側電極8而組裝真空閥的中間組裝體，將模芯11組裝至該中間組裝體並配置於成型用之固定側模具12，並且以半硬化狀態將以BMC材料為主材之絕緣樹脂材料13配置在中間組裝體中之絕緣容器1的上部。 接著，如圖3B所示，使可動側模具14移動，且對絕緣樹脂材料13進行按壓並使之流動。 最後，如圖3C所示，當使可動側模具14移動至最後位置時，絕緣樹脂材料13會被填充於中間組裝體之外周，之後使絕緣樹脂材料13硬化，藉此可製造於外周形成有絕緣樹脂層9之真空閥100。 The steps of manufacturing the insulating resin layer 9 of this vacuum valve 100 by direct compression molding will be described with reference to FIGS. 3A , 3B, and 3C. First, as shown in FIG. 3A, the fixed-side end plate 2 and the movable-side end plate 3 are brazed to both ends of a cylindrical insulating container 1 to form a vacuum container, and the fixed-side electrode 5 is accommodated in the vacuum container. The intermediate assembly of the vacuum valve is assembled with the movable side electrode 8, the core 11 is assembled to the intermediate assembly and placed on the fixed side mold 12 for molding, and the insulating resin with BMC material as the main material is placed in a semi-hardened state. The material 13 is disposed on the upper part of the insulating container 1 in the intermediate assembly. Next, as shown in FIG. 3B , the movable side mold 14 is moved to press and flow the insulating resin material 13 . Finally, as shown in FIG. 3C , when the movable side mold 14 is moved to the final position, the insulating resin material 13 will be filled in the outer periphery of the intermediate assembly, and then the insulating resin material 13 will be hardened, thereby producing a mold formed on the outer periphery. The vacuum valve 100 of the insulating resin layer 9.

順帶一提，在將絕緣樹脂材料13填充於組裝體之外周之際，BMC材雖需要有高成型壓力(約10兆帕)，惟若成型壓力P過大，則會有使真空閥100之硬銲部10造成損傷之疑慮，因此必須將產生於硬銲部10之荷重F1及硬銲部10的容許荷重F2之關係設定在F1＜F2。 在此，因成型壓力P所產生之荷重F1係與固定側端板2及可動側端板3之外周部的面積S成正比，因此如圖4顯示因成型壓力P所產生之荷重F與面積S之關係，以使面積S成為F1＜F2之方式構成固定側端板2及可動側端板3，藉此可防止硬銲部10之損傷，並且可製造藉由直壓成型對外周部進行模製的真空閥100。 By the way, when filling the insulating resin material 13 around the assembly body, although the BMC material needs a high molding pressure (about 10 MPa), if the molding pressure P is too large, the vacuum valve 100 will be hard. The welded portion 10 may cause damage, so the relationship between the load F1 generated on the brazed portion 10 and the allowable load F2 of the brazed portion 10 must be set to F1<F2. Here, the load F1 generated by the molding pressure P is proportional to the area S of the outer peripheral portion of the fixed side end plate 2 and the movable side end plate 3, so Figure 4 shows the load F and the area generated by the molding pressure P The relationship of S is such that the fixed side end plate 2 and the movable side end plate 3 are configured in such a way that the area S becomes F1<F2, thereby preventing damage to the brazed portion 10 and manufacturing the outer peripheral portion by direct compression molding. Molded vacuum valve 100.

實施型態2 圖5係顯示藉由實施型態2之真空閥的製造方法而製造之真空閥整體之構成的剖視圖。圖6係將圖5之B部予以放大的剖視圖。圖7係圖6之要部立體圖。 在實施型態2中，以覆蓋固定側端板2之方式配置圖7所示之由杯狀之導電性構件所構成之罩體15，並且以絕緣樹脂材料13對中間組裝體之整體進行模製而形成絕緣樹脂層9者。其他構成係與實施型態1相同，針對相同或相當之部分標記相同符號並省略其說明。 Implementation Type 2 FIG. 5 is a cross-sectional view showing the overall configuration of a vacuum valve manufactured by implementing the method for manufacturing a vacuum valve of Embodiment 2. FIG. Fig. 6 is an enlarged sectional view of part B in Fig. 5 . Fig. 7 is a perspective view of the main part of Fig. 6 . In Embodiment 2, a cover 15 made of a cup-shaped conductive member shown in FIG. system to form the insulating resin layer 9. The other configurations are the same as those in Embodiment 1, and the same or equivalent parts are marked with the same symbols and their descriptions are omitted.

如上方式，藉由配置由杯狀之導電性構件所構成之罩體15並對絕緣樹脂材料13進行模製，即可減少在成型時產生之對硬銲部10造成的負荷，並且可增加真空閥100之構成的自由度。 再者，由杯狀之導電性構件所構成的罩體15係由於緩和硬銲部10中之電場集中，因此可使真空閥100之絕緣耐力更提升。 As above, by arranging the cover 15 made of a cup-shaped conductive member and molding the insulating resin material 13, the load on the brazing portion 10 during molding can be reduced, and the vacuum can be increased. Degree of freedom in the configuration of the valve 100 . Furthermore, the cover body 15 made of the cup-shaped conductive member eases the concentration of the electric field in the brazing portion 10, so that the insulation resistance of the vacuum valve 100 can be further improved.

實施型態3 圖8A係顯示實施型態3之真空閥的製造方法中之製造過程的剖視圖。圖8B係將圖8A之製造過程中之一部分切斷而顯示的立體圖。 在真空閥100中，由於必須在可動側確保可動側電極棒7之可動空間，因此無法對可動側端板3之全外周進行模製。因此，在真空閥之軸方向，中間組裝體所被模製的投影面積係可動側會少於固定側，在成型時產生在中間組裝體之荷重，係固定側＞可動側。 Implementation Type 3 FIG. 8A is a cross-sectional view showing the manufacturing process in the manufacturing method of the vacuum valve of Embodiment 3. FIG. Fig. 8B is a perspective view showing a part of the manufacturing process of Fig. 8A cut away. In the vacuum valve 100, since it is necessary to secure a movable space for the movable side electrode rod 7 on the movable side, it is not possible to mold the entire outer circumference of the movable side end plate 3. Therefore, in the axial direction of the vacuum valve, the molded projected area of the intermediate assembly is smaller than that of the fixed side, and the load generated on the intermediate assembly during molding is fixed side > movable side.

因此，當以連結在固定側端板2及固定側電極棒4之外部拉出端子4a來承受成型時之軸方向的壓力時，會由固定側端板2承受所有之荷重，而會產生變形之疑慮。因此，如圖8A、圖8B所示，藉由以模具12、14之模芯11從圓周方向支持絕緣容器1，且在該狀態下填充絕緣樹脂材料13，即可減少產生在固定側端板2之軸方向的荷重，且可避免因成型所造成之硬銲部10的損傷。Therefore, when the external pull-out terminal 4a connected to the fixed-side end plate 2 and the fixed-side electrode rod 4 is subjected to axial pressure during molding, the fixed-side end plate 2 will bear all the load and deformation will occur. doubts. Therefore, as shown in FIG. 8A and FIG. 8B, by supporting the insulating container 1 from the circumferential direction with the mold core 11 of the mold 12, 14, and filling the insulating resin material 13 in this state, it is possible to reduce the occurrence of damage to the fixed side end plate. 2 in the axial direction of the load, and can avoid the damage of the brazed part 10 caused by molding.

此外，圖9、圖10、圖11係顯示實施型態3之真空閥的製造方法中之其他製造過程之例的剖視圖，圖9係顯示藉由模芯11之前端從軸方向支持絕緣容器1之例。並且，圖10係從圓周方向支持可動側端板3之例，並且，圖11係顯示從軸方向支持可動側端板3之例，在上述任一種情形下，皆可減少產生在固定側端板2之軸方向的荷重。In addition, FIG. 9, FIG. 10, and FIG. 11 are cross-sectional views showing examples of other manufacturing processes in the manufacturing method of the vacuum valve of Embodiment 3. FIG. 9 shows that the insulating container 1 is supported from the axial direction by the front end of the mold core 11. example. Moreover, Fig. 10 is an example of supporting the movable side end plate 3 from the circumferential direction, and Fig. 11 shows an example of supporting the movable side end plate 3 from the axial direction. The load in the direction of the axis of the plate 2.

實施型態4 圖12A、圖12B及圖12C係用以說明實施型態4之真空閥的製造方法之概要圖，且顯示採用轉注成型時之製造過程。再者，圖13係顯示在實施型態4之真空閥的製造方法中產生於要部之荷重之變化的時序圖。 Implementation Type 4 Fig. 12A, Fig. 12B and Fig. 12C are schematic diagrams for explaining the manufacturing method of the vacuum valve of Embodiment 4, and show the manufacturing process when transfer molding is adopted. In addition, FIG. 13 is a time chart showing the change of the load which arises in the main part in the manufacturing method of the vacuum valve of Embodiment 4. As shown in FIG.

首先，如圖12A所示，在將模芯20安裝成支持真空閥之中間組裝體中之可動側端板3的圓周方向的狀態，配置於在預熱之固定側模具21與可動側模具22之間，且在可動側模具22之材料填充罐23設置經預熱之以BMC材料為主材的絕緣樹脂材料30。 接著，如圖12B所示，使加壓裝置24移動而將絕緣樹脂材料30注入於模具21、22內，最後如圖12C所示，使加壓裝置24移動至最終位置並將絕緣樹脂材料30填充於中間組裝體及模芯20之外周。 然後，使絕緣樹脂材料30硬化，藉此即可製造一種在真空閥之中間組裝體外周形成絕緣樹脂層9之真空閥100。 First, as shown in FIG. 12A, the mold core 20 is installed to support the circumferential direction of the movable side end plate 3 in the intermediate assembly of the vacuum valve, and is arranged on the fixed side mold 21 and the movable side mold 22 which are preheated. Between, and in the material filling tank 23 of the movable side mold 22, a preheated insulating resin material 30 mainly made of BMC material is provided. Next, as shown in FIG. 12B, the pressing device 24 is moved to inject the insulating resin material 30 into the molds 21, 22. Finally, as shown in FIG. 12C, the pressing device 24 is moved to the final position and the insulating resin material 30 is injected. Fill in the outer periphery of the intermediate assembly and the mold core 20 . Then, the insulating resin material 30 is cured, whereby the vacuum valve 100 in which the insulating resin layer 9 is formed on the periphery of the intermediate assembly of the vacuum valve can be manufactured.

在該種轉注成型中，在藉由對模具21、22預先進行預熱而被預熱之絕緣樹脂材料30流動於模具21、22內之際，會被進一步加熱而成為凝膠狀，且絕緣樹脂材料30之黏性會降低。因此，如圖13所示，施加於真空閥之中間組裝體的壓力會在填充中減小，而可使產生於硬銲部10之荷重F4減小。 再者，填充至成型用模具之絕緣樹脂材料30的位置或注入速度等成型條件，係由模具之構造及成型設備之控制而決定，因此可容易地進行成型條件之控制，且可控制產生於硬銲部之荷重F4的變異。 因此，可製造品質更穩定之真空閥100。 In this type of transfer molding, when the preheated insulating resin material 30 flows in the molds 21, 22 by preheating the molds 21, 22 in advance, it will be further heated to become gel-like and insulating. The viscosity of the resin material 30 will decrease. Therefore, as shown in FIG. 13 , the pressure applied to the intermediate assembly of the vacuum valve decreases during filling, thereby reducing the load F4 generated on the brazing portion 10 . In addition, the molding conditions such as the position of the insulating resin material 30 filled into the molding mold or the injection speed are determined by the structure of the mold and the control of the molding equipment, so the control of the molding conditions can be easily performed, and it is possible to control the occurrence of The variation of the load F4 of the brazed part. Therefore, the vacuum valve 100 with more stable quality can be manufactured.

此外，如圖13顯示實施型態1中之產生於硬銲部10之荷重F3，在直壓成型中，由於係由作業者進行絕緣樹脂材料之安裝，因此作業容易產生變異，特別是依硬化狀態之絕緣樹脂材料30的配置，雖有施加於中間組裝體之壓力部位及時間點之變異變大，且變異亦會隨著產生於硬銲部10之荷重F3變大而變大的疑慮，惟依據轉注成型，有成型條件之控制變得容易的優點。In addition, Fig. 13 shows the load F3 generated on the brazed portion 10 in Embodiment 1. In direct compression molding, since the operator installs the insulating resin material, the operation is prone to variation, especially depending on the hardening. Although the arrangement of the insulating resin material 30 in this state has a large variation in the pressure point and time point applied to the intermediate assembly, and the variation will also increase as the load F3 generated on the brazing portion 10 increases, However, according to transfer molding, there is an advantage that the control of molding conditions becomes easy.

再者，在上述實施型態4中，雖構成為藉由轉注成型方法而形成絕緣樹脂層9，惟亦可構成為藉由射出成型方法來形成絕緣樹脂層9。 並且，在上述實施型態中，就絕緣樹脂材料而言，雖係構成為利用以不飽和聚酯樹脂為主材之絕緣樹脂材料來形成絕緣樹脂層，惟亦可採用酚樹脂、乙烯酯樹脂、丙烯酸樹脂之任一者作為主材。 並且，藉由包含主材20至30%、作為強化纖維之玻璃纖維、碳纖維、醯胺纖維、聚乙烯纖維、基綸纖維或硼纖維15至20%、及作為填充劑之碳酸鈣、氫氧化鋁或矽酸鹽50至60%的絕緣樹脂材料，來形成絕緣樹脂層。 Furthermore, in Embodiment 4 described above, although the insulating resin layer 9 is formed by the transfer molding method, the insulating resin layer 9 may also be formed by the injection molding method. Moreover, in the above-mentioned embodiment, as far as the insulating resin material is concerned, although it is constituted to utilize an insulating resin material mainly made of unsaturated polyester resin to form an insulating resin layer, it is also possible to use phenol resin, vinyl ester resin, etc. , acrylic resin as the main material. And, by including 20 to 30% of the main material, 15 to 20% of glass fiber, carbon fiber, amide fiber, polyethylene fiber, kylon fiber or boron fiber as reinforcing fiber, and calcium carbonate and hydroxide as filler Aluminum or silicate 50 to 60% insulating resin material to form the insulating resin layer.

此外，本案記載例示之實施型態，惟各式各樣之特徵、態樣、及功能並非限定於特定之實施型態的運用，亦可單獨地或以各種組合運用於實施型態。 因此，可於本案揭示之技術範圍內設想未例示之無數的變形例。例如，包含要變更至少一個構成要素之情形，追加至少一個構成要素之情形，或省略至少一個構成要素之情形，更包含有抽出至少一個構成要素，且與其他實施型態之構成要素組合之情形。 In addition, this case describes the exemplary implementation forms, but the various features, aspects, and functions are not limited to the use of specific implementation forms, and can also be used alone or in various combinations in the implementation forms. Therefore, numerous modification examples not illustrated can be conceived within the technical scope disclosed in this application. For example, it includes the case of changing at least one constituent element, the case of adding at least one constituent element, or the case of omitting at least one constituent element, and further includes the case of extracting at least one constituent element and combining it with constituent elements of other implementation forms .

1:絕緣容器 2:固定側端板 3:可動側端板 4:固定側電極棒 4a:外部拉出端子 5:固定側電極 6: 波紋管 7:可動側電極棒 8:可動側電極 9:絕緣樹脂層 10:硬銲部 11:模芯 12:固定側模具(模具) 13:絕緣樹脂材料 14:可動側模具(模具) 15:罩體 20:模芯 21:固定側模具(模具) 22:可動側模具(模具) 23:材料填充罐 24:加壓裝置 30:絕緣樹脂材料 100:真空閥 S:面積 F1,F2,F3,F4:荷重 1: Insulated container 2: Fixed side end plate 3: Movable side end plate 4: Fixed side electrode rod 4a: External pull-out terminal 5: Fixed side electrode 6: Bellows 7: Movable side electrode rod 8: Movable side electrode 9: Insulating resin layer 10: Hard welding part 11: Core 12: Fixed side mold (mould) 13: Insulating resin material 14: Movable side mold (mould) 15: Cover body 20: Core 21: fixed side mold (mold) 22: Movable side mold (mould) 23: Material filling tank 24: Pressurization device 30: insulating resin material 100: vacuum valve S: area F1, F2, F3, F4: load

圖1係顯示藉由實施型態1之真空閥的製造方法而製造之真空閥整體之構成的剖視圖。 圖2係顯示將圖1之A部予以放大的剖視圖。 圖3A係用以說明實施型態1之真空閥的製造方法的概要圖。 圖3B係用以說明實施型態1之真空閥的製造方法的概要圖。 圖3C係用以說明實施型態1之真空閥的製造方法的概要圖。 圖4係用以說明實施型態1之真空閥之成型時的荷重與外周部之面積之關係的概要圖及特性圖。 圖5係顯示藉由實施型態2之真空閥的製造方法而製造之真空閥整體之構成的剖視圖。 圖6係將圖5之B部予以放大的剖視圖。 圖7係圖6之要部立體圖。 圖8A係顯示實施型態3之真空閥的製造方法中之製造過程的剖視圖。 圖8B係將圖8A之製造過程中之一部分切斷而顯示的立體圖。 圖9係顯示實施型態3之真空閥的製造方法中之其他製造過程之例的剖視圖。 圖10係顯示實施型態3之真空閥的製造方法中之其他製造過程之例的剖視圖。 圖11係顯示實施型態3之真空閥的製造方法中之其他製造過程之例的剖視圖。 圖12A係用以說明實施型態4之真空閥的製造方法的概要圖。 圖12B係用以說明實施型態4之真空閥的製造方法的概要圖。 圖12C係用以說明實施型態4之真空閥的製造方法的概要圖。 圖13係顯示在實施型態3及4之真空閥的製造方法中產生於要部之荷重之變化的時序圖。 FIG. 1 is a cross-sectional view showing the overall configuration of a vacuum valve manufactured by implementing a method for manufacturing a vacuum valve of Embodiment 1. As shown in FIG. Fig. 2 is an enlarged sectional view of part A of Fig. 1 . FIG. 3A is a schematic diagram illustrating a method of manufacturing the vacuum valve of Embodiment 1. FIG. FIG. 3B is a schematic diagram for explaining the method of manufacturing the vacuum valve of Embodiment 1. FIG. FIG. 3C is a schematic diagram for explaining the manufacturing method of the vacuum valve of Embodiment 1. FIG. 4 is a schematic diagram and a characteristic diagram for explaining the relationship between the load and the area of the outer peripheral portion during molding of the vacuum valve of Embodiment 1. FIG. FIG. 5 is a cross-sectional view showing the overall configuration of a vacuum valve manufactured by implementing the method for manufacturing a vacuum valve of Embodiment 2. FIG. Fig. 6 is an enlarged sectional view of part B in Fig. 5 . Fig. 7 is a perspective view of the main part of Fig. 6 . FIG. 8A is a cross-sectional view showing the manufacturing process in the manufacturing method of the vacuum valve of Embodiment 3. FIG. FIG. 8B is a perspective view showing a part of the manufacturing process of FIG. 8A cut away. FIG. 9 is a cross-sectional view showing an example of another manufacturing process in the manufacturing method of the vacuum valve of Embodiment 3. FIG. FIG. 10 is a cross-sectional view showing an example of another manufacturing process in the manufacturing method of the vacuum valve according to Embodiment 3. FIG. FIG. 11 is a cross-sectional view showing an example of another manufacturing process in the manufacturing method of the vacuum valve of Embodiment 3. FIG. FIG. 12A is a schematic diagram for explaining a method of manufacturing a vacuum valve according to Embodiment 4. FIG. FIG. 12B is a schematic diagram for explaining a method of manufacturing a vacuum valve according to Embodiment 4. FIG. FIG. 12C is a schematic diagram for explaining a method of manufacturing the vacuum valve of Embodiment 4. FIG. FIG. 13 is a timing chart showing changes in loads on essential parts in the manufacturing methods of the vacuum valves of Embodiments 3 and 4. FIG.

1:絕緣容器 1: Insulated container

11:模芯 11: Core

12:固定側模具(模具) 12: Fixed side mold (mould)

13:絕緣樹脂材料 13: Insulating resin material

14:可動側模具(模具) 14: Movable side mold (mould)

Claims (7)

一種真空閥的製造方法，係在模具內配置真空閥的中間組裝體，且將絕緣樹脂材料模製成型於前述中間組裝體之外周而形成絕緣樹脂層，該真空閥的中間組裝體係分別將固定側端板及可動側端板硬銲接合於圓筒狀之絕緣容器的兩端而形成真空容器，並且於前述真空容器內收納有固定側電極及可動側電極而構成者， 該真空閥的製造方法係在將前述絕緣樹脂材料模製於前述中間組裝體之外周時，以使產生於前述絕緣容器與前述固定側端板之硬銲部的荷重比前述硬銲部之容許荷重小的方式，形成前述固定側端板之外周部的面積。 A method for manufacturing a vacuum valve, comprising disposing an intermediate assembly of the vacuum valve in a mold, and molding an insulating resin material on the outer periphery of the intermediate assembly to form an insulating resin layer. The intermediate assembly system of the vacuum valve is respectively The fixed-side end plate and the movable-side end plate are brazed and joined to both ends of a cylindrical insulating container to form a vacuum container, and the fixed-side electrode and the movable-side electrode are accommodated in the aforementioned vacuum container, The manufacturing method of the vacuum valve is to make the load generated on the brazed portion between the insulating container and the fixed-side end plate be greater than the allowable load of the brazed portion when the insulating resin material is molded on the outer periphery of the intermediate assembly. The area of the outer peripheral portion of the fixed-side end plate is formed so that the load is small. 如請求項1所述之真空閥的製造方法，其中，係採用直壓成型或轉注成型或射出成型作為形成前述絕緣樹脂層之模製成型方法。The method of manufacturing a vacuum valve as described in Claim 1, wherein direct compression molding, transfer molding, or injection molding is used as the molding method for forming the insulating resin layer. 如請求項1或2所述之真空閥的製造方法，其中，在藉由模芯來支持前述絕緣容器中之可動側端板側的一部分或前述可動側端板的狀態下，將絕緣樹脂材料填充於前述中間組裝體之外周，以形成絕緣樹脂層。The method for manufacturing a vacuum valve according to claim 1 or 2, wherein the insulating resin material is molded in a state where a part of the movable-side end plate in the insulating container or the movable-side end plate is supported by a mold core. Filling the outer periphery of the aforementioned intermediate assembly to form an insulating resin layer. 如請求項1或2所述之真空閥的製造方法，其中，係採用以不飽和聚酯樹脂、乙烯酯樹脂、酚樹脂、丙烯酸樹脂之任一者為主材的絕緣樹脂作為前述絕緣樹脂材料。The method for manufacturing a vacuum valve as described in claim 1 or 2, wherein an insulating resin made of any one of unsaturated polyester resin, vinyl ester resin, phenol resin, and acrylic resin as the main material is used as the insulating resin material . 如請求項1或2所述之真空閥的製造方法，其中，更設置用以覆蓋前述固定側端板之外周部的罩體，以形成前述中間組裝體。The method for manufacturing a vacuum valve according to claim 1 or 2, wherein a cover for covering the outer peripheral portion of the fixed-side end plate is further provided to form the intermediate assembly. 如請求項3所述之真空閥的製造方法，其中，更設置用以覆蓋前述固定側端板之外周部的罩體，以形成前述中間組裝體。The manufacturing method of the vacuum valve according to claim 3, wherein a cover body for covering the outer peripheral portion of the fixed-side end plate is further provided to form the intermediate assembly. 如請求項5所述之真空閥的製造方法，其中，以導電性構件來形成前述罩體。The method of manufacturing a vacuum valve according to claim 5, wherein the cover is formed of a conductive member.
TW111106291A 2021-07-05 2022-02-22 Manufacturing method of vacuum valve TWI818443B (en)

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JP3758435B2 (en) 1999-12-13 2006-03-22 三菱電機株式会社 Power switch
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