CN1279367A - 防水型器具的密封结构 - Google Patents

防水型器具的密封结构 Download PDF

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CN1279367A
CN1279367A CN00109001A CN00109001A CN1279367A CN 1279367 A CN1279367 A CN 1279367A CN 00109001 A CN00109001 A CN 00109001A CN 00109001 A CN00109001 A CN 00109001A CN 1279367 A CN1279367 A CN 1279367A
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casing
hermetic unit
parts
welding
different materials
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CN1114960C (zh
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山口孝志
山下干弘
雁濑敬三
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
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    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
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    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
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    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • B29C66/73116—Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/13—Odd-shaped

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
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Abstract

一种防水型器具的密封结构,通过密闭材料2堵住箱体1的开口部1a。在箱体1与密闭部件2之间所形成的保持部4上设置与箱体1和密闭部件2不同材料构成的不同材料部件3。进而将箱体1与密闭部件2进行焊接形成防水型器具的密封结构。在保持部4与不同材料部件3之间设置比箱体1及密闭部件2熔点低的熔融部件5。在将箱体1与密闭部件2热焊接时,将热熔部件5热熔,由热熔部件5将保持部4与不同材料部件3的间隙15密封。

Description

防水型器具的密封结构
本发明涉及由焊机焊接而形成的非接触充电器等防水型器具的密封结构。
在需要非接触充电器等的防水性的防水型器具中，通过焊机焊接，即加热和加压焊接形成密闭结构时，迄今都是采用由箱体与相同材料的密闭部件堵住箱体，通过在箱体与密闭部件的表面上在全周范围内进行焊机焊接而形成的密封结构，在这样的防水型器具中，设置与套管等的箱体或密闭部不同材料的不同材料部件时，在设置不同材料部件的部件不进行焊机焊接，而是由胶粘剂或油等填补防水型器具与不同材料部件的密封面的间隙。从而形成密封结构。
另外，作为另一已有的例子还可举出特开平9-289001号公报所公开的技术。该技术是在密封式铅蓄电池中将所谓极住的突出部分与所谓电槽盖的筒状物的不同材料之间进行热熔连接之后，将封口材料填充到连接部分并使之固化而形成密封结构。
然而，如上所述，在由胶粘剂或油将不同材料部分填补到密封面间隙时，存在着胶粘剂或油粘附在其他部分而发生污染的问题。而且还必须在另一工序中设置胶粘剂或油等。
此外，在上述的特开平9-289001号公报所公开的密封式蓄电池中，还需要在热熔后填充封口剂的工序，因此存在着费事费时的问题。
本发明是鉴于上述所存在的问题而提出的，其目的在于，提供一种通过在由不同材料构成的不同材料部件的状态下，只用焊机焊接很容地将由相同材料构成的箱体与密闭部件密封而形成密封结构的防水型器具的密封结构。
本发明之一的防水型器具的密封结构，是一种通过密闭部件2堵住箱体1的开口部1a，同时在箱体1与密闭部件2之间形成的保持部4上设置由与箱体1及密闭部件2不同材料构成的不同材料部件3，并将箱体1与密闭材料2热焊接的防水型器具的密封结构，其特征在于，在保持部4与不同材料3之间设置比箱体1及密闭材料2熔点低的熔融部件5，在将箱体1与密闭部件2热焊接时，将热熔部件5热熔，由热熔部件5密封保持部件4与不同材料3的间隙15而构成。
还有，本发明之二的防水型器具的密封结构，包括上述发明之一的构成在内，其特征在于，在箱体1或密闭部件2上设置比箱体1及密闭部件2熔点低的密封部件6，将熔融部件5作为密封部件6的一部分而形成。
还有，本发明之三的防水型器具的密封结构，包括上述发明之一的构成在内，其特征在于，在不同材料部件3上设置熔融部件5而构成。
以下，对附图作简单说明。
图1为表示本发明实施例1的分解立体图。
图2(a)及(b)为图1的剖视图。
图3为表示本发明实施例2的分解立体图。
图4(a)及(b)为图3的剖视图。
图5为表示本发明实施例3的分解立体图。
图6(a)及(b)为图5的剖视图。
图7为表示本发明实施例4的图；(a)为表示密闭部件的立体图；(b)为一部分的剖视图。
图8为表示本发明实施例5一部分的剖视图。
在上附图中，1-箱体、2-密闭部件、3-不同材料部件、4-保持部、5-熔融部件、6-密封部件、15-间隙。
以下，说明本发明的实施例。
结合图1及图2，说明本发明实施例1。这里在图1上示出组装前箱体1、密闭部件2及不同材料部件3。图2为组装图1的箱体1、密闭部件2及不同材料部件3形成防水型器具的外壳25时的图1A-A剖视图。
箱体1及密闭部件2通常由相同材料制成，由合成树脂等制成。
箱体1是作为在下方具有开口的开口部1a的容器形成的。而箱体1侧壁的下端面是作为平坦的焊接承受面8形成的。此外，在箱体1的侧壁于下方开口，同时凹设有连接箱体1内外的保持凹部23。这里在保持凹部23的内面形成内周槽9。
密闭部件2的上面尺寸与箱体1下面外周的尺寸大致相同地形成。在密闭部件2的上面外缘部，在与焊接承受面8对应的位置上突设有焊接肋条7，同时在与保持凹部23对应的位置上突设熔融部件5。这里焊接肋条7在与焊接承受面8对应的位置上连续不断地形成，熔融部件5在焊接肋条7的两端之间以与焊接肋条7连接的状态下设置的。而熔融部件5从焊接肋条7向上方突出地形成。该焊接肋条7可由与箱体1及密闭部件2同一材料形成。此外，熔融部件5是由比箱体1及密闭部件2熔点低的材料制成的，例如可由橡胶或氯乙烯树脂制成。
此外，塞绳套管3a是作为由与箱体1和密闭部件2不同材料构成的不同材料部件3形成的，例如由氯乙烯树脂形成。在塞绳套管3a一侧形成以嵌入箱体1内周槽9的形状所形成的嵌入部14，和在其另一侧形成比保持凹部23的开口尺寸稍大尺寸所形成的锁定部12，在嵌入部14与锁定部12之间形成以比保持凹部23的开口部尺寸稍小的尺寸所形成的小径部13。并且，在锁定部12的表面上整体地形成突出部11。在从该突出部11的前端开始直至嵌入部14表面的塞绳套管3a的内部插入电源导线10。
在利用如上所述构成的箱体1和密闭部件2及不同材料部件3形成防水型器具的密封结构时，首先在箱体1的保持凹部23设置塞绳套管3a。此时，塞绳套管3a的嵌入部14嵌入保持凹部23的内周槽9内，同时锁定部12被设置在箱体1的个外侧，小径部13成为设置在保持凹部23内的状态。此时，突出部11当然也设置在箱体1的外部。此外，在未图示的、通过塞绳套管3a电源导线10向箱体1外侧导出的部分设置电源插头，另一方面，导入箱体1内的部分与安装在箱体1内的电气部件相连接。
在这种状态下，使密闭部件2与箱体1下面的开口部1a合位，堵住开口部1。此时使焊接肋条7与焊接承受面8合位，同时使熔融部件5与保持凹部23合位。在这种状态下，在密闭部件2的下面、在与焊接肋条7及熔融部件5对应的位置上，利用超声波焊机、高频焊机、热风焊机和点焊机等焊机进行加热和加压处理，使箱体1与密闭部件2热熔接。例如，在密闭部件2的下面、在与焊接肋条7及熔融部件5对应的位置上进行加压，同时使超声波传导加热，将箱体1与密闭部件2进行超声波焊接。
在进行该加热加压处理时，通过焊接肋条7熔融与箱体1的焊接承受面8焊接，使箱体1与密闭部件2焊接，塞绳套管3a设置在由箱体1的保持凹部23与密闭部件2的上面包围所形成的保持开口4a内。即是说，该保持开口4a是作为保持不同材料部件3的保持部4形成的。而且，与此同时，熔融部件5也熔融，该熔融的熔融部件5向保持开口部4a的内周和塞绳套管3a的间隙15内流动，由熔融部件5密封该间隙15。
在如上所述的构成防水型器具的密封结构中，箱体1与密闭部件2直接接触的表面通过焊接肋条7遍及整体地焊接，还有，在箱体与密闭部件2之间的、保持不同材料部件3的保持部4中，不同材料部件3与保持部件4的间隙15由熔融部件5填补，由箱体1与密闭部件2构成的防水型器具的外壳25成为完全密封。
其次，结合图3及图4，说明本发明实施例2。这里，图3为表示组装前的箱体1、密闭部件2及不同材料部件3的图；而图4则是将图3上所示的箱体1、密闭部件2及不同材料部件3组装形成防水型器具的外壳25时图3的A-A剖视图。
与上述实施例1所示的情况相同，在箱体1上形成开口部1a及保持凹部23。此外，箱体1侧壁的下端面最外侧部分是突出部17，其内侧部分是槽部16，特别是其内侧部分，侧壁下端面的最内侧部分是作为焊接承受面8形成的。槽部16是作为在下方开口的凹槽形成。而在槽部16两侧形成的突出部17与焊接承受面8的下面分别平坦地形成，突出部17向下方突出。
密闭部件2的上面尺寸以与箱体1下面的焊接承受面8的外周尺寸大致相同地形成。在密闭部件2上面的外缘部，在与焊接承受面8对应的位置上突设有焊接肋条7。这里焊接肋条7在密闭部件2的方形状的上面，分别在该上面的四边中的三边外缘部形成，这样就在分离成三个部位形成。该焊接肋条7可由与箱体1及密闭部件2相同的材料形成。此外，在密闭部件2的外周，在与箱体1的槽部16及保持凹部23对应的位置上，遍及全周地形成密封部件6。该密封部件6是由此箱体1或密闭部件2的熔点低的材料形成的，例如可由橡胶形成。还有，该密封部件6，其一部分比其他部分向上方突出地形成，该部分是作为熔融部件5形成的。在这里，熔融部件5在密闭部件2上面的四边中外缘部分没有形成焊接肋条7的一边外周部，在与保持凹部23对应的位置上，向上方突出设置。
还有，塞绳套管3a可以使用与上述实施例1相同的塞绳套管3a。
在使用如上所述构成的箱体1的密闭部件2以及不同材料部件3形成防水型器具的密封结构时，首先在箱体1的保持凹部23上设置塞绳套管3a。此时，塞绳套管3a的嵌入部14嵌入保持凹部23，同时锁定部12被设置在箱体1的外侧，小径部13成为设置在保持凹部23内的状态。此时，突出部11当然也设置在箱体1的外部。此外，在未图示的、通过塞绳套管3a电源导线10向箱体1的外侧导出的部分设置电源插头，另一方面，导入箱体1内的部分与安装在箱体1内的电气部件相连接。
在这种情况下，使密闭部件2与箱体1下面的开口部1a合位，堵住开口部1a。此时使焊接肋条7与焊接承受面8合位，使密封部件6与槽部16合位，也使熔融部件5与保持凹部23合位。在这种状态下，在密闭部件2的下面、在与焊接肋条7及熔融部件5对应的位置上，利用超声波焊机、高频焊机、热风焊机、点焊机等焊机进行加热加压处理，使箱体1与密闭部件2热焊接。例如，在密闭部件2的下面、在与焊接肋条7及熔融部件5对应的位置上进行加压，同时使超声波传导加热，将箱体1与密闭部件2进行超声波焊接。
在进行该加热加压处理时，通过焊接肋条7熔融与箱体1焊接承受面8焊接，使箱体1与密闭部件2焊接，塞绳套管3a设置在由箱体1的保持凹部23与密闭部件2的上面包围所形成的保持开口4a内。即是说，该保持开口4a是作为保持不同材料部件3的保持部4形成的。而且，与此同时，密封部件6也熔融，该熔融的密封部件6向箱体1的槽部17内流动，由密封部件6密封密闭部件2的外周与箱体1的槽部17之间。另外，密封部件6中的熔融部件5也熔融，该熔融的熔融部件5向保持开口部4a的内周与塞绳套管3a的间隙5内流动，该间隙15由熔融部件5密封。
在如上所述构成的防水型器具的密封结构中，箱体1与密闭部件2直接接触的表面由形成焊接肋条7的部位焊接，同时由密封部件6密封，尤其在箱体1与密闭部件2之间的、保持不同材料部件3的保持部4中，不同材料部件3与保持部4的间隙15由熔融部件5填补，由箱体1与密闭部件2所构成的防水型器具的外壳25成为完全地密封。
图5及图6示出本发明实施例3。这里图5示出了组装前的箱体1和密闭部件2以及不同材料部件3的图；图6示出组装图5上所示出的箱体1和密闭部件2以及不同材料部件3并形成防水型器具的外壳25时图5的A-A剖视图。
作为箱体1可使用与实施例1相同的箱体1。
密闭部件2的上面尺寸与箱体1下面的外周尺寸大致相同地形成。在密闭部件2上面的外缘部，在与焊接承受面8对应的位置上突设有焊接肋条7，在与保持凹部23相对应的位置上形成有不设焊接肋条7的缺口部18。这里焊接肋条7在涉及与焊接承受面8对应的位置上连续地形成，切口部18设置在焊接肋条7的两端之间。该焊接肋条7可由与箱体1及密闭部件2相同材料形成。
还有，不同材料部件3，即塞绳套管3a与上述实施例2相同形成的，但不同点在于从塞绳套管3a的下部开始，熔融部件5向下方突出地形成。即是说，在小径部13的下部设置熔融部件5，该熔融部件5的下端也由嵌入部14及锁定部12向下方突出地形成。该熔融部件5由此比箱体1或密闭部件2熔点低的材料形成，例如可由橡胶或氯乙烯树脂形成。此时熔融部件5也可以由与塞绳套管3a相同材料形成。
在使用如上所述构成的箱体1和密闭部件2以及不同材料部件3形成防水型器具的密封结构时，首先在箱体1的保持凹部23设置塞绳套管3a。此时，塞绳套管3a的嵌入部14嵌入保持凹部23，同时锁定部12设置在箱体1的外侧，小径部13成为配置在保持凹部23内的状态。此时，突出部11当然也设置在箱体1的外部。此外，在未图示的、通过塞绳套管3a电源导线10向箱体1的外侧导出的部分设置电源插头，另一方面，导入箱体1内的部分与安装在箱体1内的电器部件相连接。还有，设置在塞绳套管3a的熔融部件5，设置在保持凹部23的下方。
在这种状态下，使密闭部件2与箱体1的下面开口部1a合位，堵住开口部1a。此时使密闭部件2的焊接肋条7与箱体1的焊接承受面8合位，同时使塞绳套管3a的熔融部件5与密闭部件2的切口部18合位。在这种状态下，在密闭部件2的下面，在与焊接肋条7及焊接部件5对应的位置上，利用超声波焊机、高频焊机、热风焊机、点焊机等的焊机进行加热加压处理，使箱体1与密闭部件2热焊接。例如，在密闭部件2的下面、在焊接肋条7及熔融部件5对应的位置上进行加压，同时使超声波传导加热，箱体1与密闭部件2进行超声波焊接。
在进行该超声波加压处理的加热加压处理时，通过焊接肋条7熔融，焊接在箱体1的焊接承受面8上，箱体1与密闭部件2焊接，塞绳套管3a设置在由箱体1的保持凹部23与密闭部件2的上面包围所形成的保持开口4a内。即是说，该保持开口4a是作为保持不同材料部件3的保持部4形成的。而且，与此同时，熔融部件5熔融，该熔融的焊接部件5向保持开口4a的内周与塞绳套管3a的间隙15内流动，由熔融部件5将该间隙15密封。
在如上所述的防水型器具的密封结构中，箱体1与密闭部件2直接接触的表面由焊接肋条7遍及整体地焊接，再有，在箱体1与密闭部件2之间的、保持不同材料部件3的保持部4中，不同材料部件3与保持部4的间隙15由熔融部件5填补，由箱体1与密闭部件2构成的防水型器具的外壳25成为完全地密封。
图7示出本发明实施例4。
在箱体1上，与上述实施例2的情况下相同，在侧壁的下端面，形成槽部16，突出部17以及焊接承受面8。
此外，在密闭部件2上，与上述实施例2的情况相同，在遍及整个的外周设置密封部件6。还有，在密闭部件2的上面外缘部，在与焊接承受面8对应位置上突设焊接肋条7，而在与焊接承受面8对应位置的一部分中，形成有不设焊接肋条7的防止过压用的切口部24。这里，焊接肋条7在遍及与焊接承受面8对应位置连续地形成，切口部18设置在焊接肋条7的两端之间。该焊接肋条7可由与箱体1及密闭部件2相同的材料形成。
还有，关于箱体1的保持凹部23、不同材料部件3、熔融部件5等虽然没有图示，但是可按照与上述的实施例1至3的情况相同地构成。
在使用如上所述构成的箱体1及密闭部件2形成的防水型器具的密封结构时，将密闭部件2与箱体1下面的开口1a合位，堵住开口部1a。这时，使焊接肋条7与焊接承受面8合位，同时使密封部件6与槽部16合位。在这种状态下，在密闭部件2的下面、与焊接肋条7对应的位置上，用超声波焊机、高频焊机、热风焊机、点焊机等的焊机进行加热加压时理，使箱体1与密闭部件2加热焊接。例如，对密闭部件2的下面的、与焊接肋条7及熔融部件5对应的位置进行加压，同时使超声波传导加热，由超声波焊接箱体1与密闭部件2。
在进行该超声波加压处理的加热加压处理时，通过焊接肋条7熔融、焊接在箱体1的焊接承受面8上，使箱体1与密闭部件2焊接，塞绳套管3a设置在由箱体1的保持凹部28与密闭部件2的上面包围所形成的保持开口4a内。即是说，该保持开口4a作为保持不同材料部件3的保持部4而形成。还有，与此同时，密封部件6也熔融，该熔融的密封部件6向箱体1的槽部17内流通，密闭部件2的外周与槽部17之间由密封部件6密封。
在如上所述构成的防水型器具的密封结构中，箱体1与密闭部件2直接接触的表面，除未形成防止过压用切口部24的部分之外，由焊接肋条7焊接，进而由密封部件6密封，由箱体1与密闭部件2构成的防水型器具的外壳25在通常的状态下成为完全地密封。于是，在外壳25内的空间由于电子部件的故障等的原因发生气体而内压上升时，内部气体通过箱体1与密闭部件2直接接触的表面的、形成防止过压用切口部24的部分达到槽部16，该气体进一步地挤压槽16内的密封部件6并使之发生弹性变形，同时向外壳25的外部放出。因此，可防止由于外壳25内的内压上升而外壳25的破裂。
此外，如图8示出的本发明实施例5所示，在密闭部件2上设置连通外罩25的外部与内部的贯通孔20，在该贯通孔20也可插通橡胶等制的底部部件19。此时在底部部件19的上部，即外壳25的内部一侧，向侧方突出地形成内部锁定肋条22，以防止底部部件19从外壳25的脱落。在底部部件19的下部，即在外壳25的外部一侧，向侧方突出地形成外部锁定肋条21，以防止底部部件19被压入外壳25内。该底部部件19在将外壳25平面载置时，是平面地直接接触，起着缓冲作用。
这里，底部部件19与贯通孔20的内面弹性接触，因此，在通常状态下由底部部件19封闭贯通孔20。于是，在外壳25内的空间，由于电子部件故障等原因发生气体，在内压上升时，该内部气体通过挤压底部部件19使贯通孔20与底部部件16之间弹性变形，同时向壳体25的外部放出。因此，可防止由于外壳25内的内压上升而引发的外壳25的破裂。
如上所述，本发明之一的防水型器具的密封结构，通过密闭部件堵住箱体的开口部，同时在箱体与密闭部件之间所形成的保持部上设置与箱体及密闭部件不同材料构成的不同材料部件，将箱体与密闭部件进行热焊接。在保持部与不同材料部件之间设置比箱体及密闭部件熔点低的熔融部件，在将箱体与密闭部件热焊接时，将热熔部件热熔，由热熔部件密封保持部件与不同材料部件的间隙。若将箱体与密闭部件的界面热焊接，则同时可密封保持部与不同材料部件的间隙，可容易地形成具有不同材料部件的防水型器具的密封结构。
还有，本发明之二的防水型器具的密封结构，包括本发明之一的结构在内，在箱体或密闭部件上设置比箱体及密闭部件熔点低的密封部件，将熔融部件作为密封部件的一部分而形成。用熔融部件密封保持部件与不同材料部件的间隙，同时用密封部件可密封箱体与密闭部件的表面。进而可更加容易可靠地形成防水型器具的密封结构。
还有，本发明之三的防水型器具的密封结构，包括本发明之一的构成在内，在不同材料部件上设置熔融部件，将熔融部件作为不同材料部件的一部分形成，则可更加容易地形成防水型器具的密封结构。

Claims (3)

1．一种防水型器具的密封结构，通过密闭部件堵住箱体的开口部，同时在箱体与密闭部件之间所形成的保持部上设置与箱体和密闭部件不同的材料构成的不同材料部件，将箱体与密闭部件进行热焊接，其特征在于，在保持部与不同材料部件之间设置比箱体及密封部件熔点低的熔融部件，在将箱体与密闭部件热焊接时，将热熔部件热熔，由热熔部件将保持部与不同材料部件的间隙密封而构成。
2．根据权利要求1所述的防水型器具的密封结构，其特征在于，在箱体或密闭部件上设置比箱体及密闭部件熔点低的密封部件，将熔融部件作为密闭部件的一部分而形成。
3．根据权利要求1所述的防水型器具的密封结构，其特征在于，在不同材料部件上设置熔融部件而构成。
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EP1063748A1 (en) 2000-12-27
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ATE450068T1 (de) 2009-12-15
JP2001009914A (ja) 2001-01-16
US6499621B1 (en) 2002-12-31

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