WO2023145008A1 - 気密端子 - Google Patents

気密端子 Download PDF

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Publication number
WO2023145008A1
WO2023145008A1 PCT/JP2022/003363 JP2022003363W WO2023145008A1 WO 2023145008 A1 WO2023145008 A1 WO 2023145008A1 JP 2022003363 W JP2022003363 W JP 2022003363W WO 2023145008 A1 WO2023145008 A1 WO 2023145008A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive terminal
metal substrate
protective member
terminal
outer diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/003363
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
寛 村田
孝史 戸田
伸夫 弓川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ubukata Industries Co Ltd
Original Assignee
Ubukata Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ubukata Industries Co Ltd filed Critical Ubukata Industries Co Ltd
Priority to JP2023576525A priority Critical patent/JP7578338B2/ja
Priority to KR1020247019649A priority patent/KR102901925B1/ko
Priority to PCT/JP2022/003363 priority patent/WO2023145008A1/ja
Priority to CN202280089575.8A priority patent/CN118575368A/zh
Priority to EP22923872.0A priority patent/EP4471992A4/en
Priority to US18/833,316 priority patent/US20250158299A1/en
Publication of WO2023145008A1 publication Critical patent/WO2023145008A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
    • H01B7/303—Conductors comprising interwire insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/28—Terminal boards
    • 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
    • H02G15/00—Cable fittings
    • H02G15/013—Sealing means for cable inlets
    • 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
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks

Definitions

  • An embodiment of the present invention relates to an airtight terminal.
  • the airtight terminal is constructed by passing a conductive terminal through a metal substrate.
  • a gap between the metal substrate and the conductive terminal is filled with an electrically insulating glass filler and sealed in an airtight state.
  • Applications of such airtight terminals include, for example, electric compressors for electric vehicles.
  • most electric compressors for electric vehicles are driven at a high voltage of, for example, 300V to 600V.
  • the voltage applied to the airtight terminals is low.
  • the insulation distance between the conductive terminal and the metal substrate can be shortened, that is, the gap between the metal substrate and the conductive terminal can be made small, thereby making it possible to reduce the size of the hermetic terminal.
  • the present embodiment has been made in view of the above-described circumstances, and its object is to provide an airtight terminal that can suppress adhesion and accumulation of conductive foreign matter around the conductive terminal, which may cause poor insulation of the airtight terminal. It is to provide a terminal.
  • An airtight terminal includes a metal substrate having a plurality of through holes formed thereon, a plurality of conductive terminals passed through each of the through holes, and an electrically insulating material between the through holes and the conductive terminals. It is composed of a glass filling material that is filled to seal between the through hole and the conductive terminal, and a material that has electrical insulation and elasticity, and the conductive terminal passes through the inside to cover the periphery of the conductive terminal. A protective member and a locking portion provided on the conductive terminal or the glass filler are provided.
  • the protective member comprises: a holding portion provided on a side of the protective member opposite to the metal substrate and having an inner diameter smaller than an outer diameter of the conductive terminal to hold the conductive terminal;
  • the deformable portion is elastically deformable in a direction in which it is in contact with either or both of the metal substrate and the glass filler. and a regulating portion that comes into contact with the locking portion and regulates movement of the protective member toward the metal substrate when the protective member is attached to the conductive terminal.
  • FIG. 2 is a plan view showing an example of the airtight terminal according to the first embodiment
  • FIG. 2 is a diagram showing an enlarged cross section of an example of the airtight terminal according to the first embodiment
  • Sectional drawing which shows an example of the electrically conductive terminal with which the airtight terminal by 1st Embodiment is provided.
  • FIG. 4 is a cross-sectional view showing the airtight terminal according to the first embodiment further enlarged from the view shown in FIG. 3 and showing a state in which the protective member is not attached to the conductive terminal;
  • FIG. 4 is a cross-sectional view of the airtight terminal according to the first embodiment, further enlarged from the view shown in FIG.
  • FIG. 8 is a cross-sectional view showing the airtight terminal according to the second embodiment further enlarged from the view shown in FIG. 7 and showing a state in which the protective member is not attached to the conductive terminal;
  • FIG. 8 is a cross-sectional view of the airtight terminal according to the first embodiment, further enlarged from the view shown in FIG. 7 , showing a state in which a protective member is attached to the conductive terminal;
  • FIG. 1 A first embodiment will be described with reference to FIGS. 1 to 6.
  • FIG. The airtight terminal 1 shown in FIGS. 1 to 3 is used by attaching it to, for example, an electric compressor for an electric vehicle.
  • the airtight terminal 1 of the present embodiment is more suitable for, for example, a low-voltage electric compressor, but it can also be used for a high-voltage electric compressor and other electrical equipment than the electric compressor.
  • the airtight terminal 1 includes a metal substrate 10, a connection terminal 20, a glass filler 30, an insulating member 40, a conductive terminal 50, and a protective member 60.
  • the metal substrate 10 is a member that serves as a base for the airtight terminal 1, and is a member that is attached to an attachment target such as an electric compressor.
  • the metal substrate 10 is made of metal such as carbon steel or stainless steel, and includes, for example, a plate-like member. In the case of this embodiment, the metal substrate 10 is formed in a flat plate shape as a whole. Note that the metal substrate 10 need only be flat around the through holes 12 and mounting holes 13, which will be described later, and does not need to be a flat plate as a whole.
  • the metal substrate 10 is formed point-symmetrically with respect to the center P0 of the metal substrate 10 in plan view.
  • the metal substrate 10 is formed, for example, in a shape having two bulging portions 11 that are long in one direction in the plane direction and that both ends in the longitudinal direction bulge in mutually opposite directions in the width direction of the metal substrate 10 .
  • the metal substrate 10 has a plurality of through holes 12 and a plurality of mounting holes 13 .
  • the number of through holes 12 corresponds to the number of conductive terminals 50 .
  • the numbers of through holes 12 and conductive terminals 50 are adjusted according to the electrical equipment to which the airtight terminal 1 is attached.
  • the metal substrate 10 has two mounting holes 13 and three through holes 12 .
  • the through hole 12 is formed circularly through the metal substrate 10 in the thickness direction.
  • the through hole 12 is for passing the conductive terminal 50 therethrough.
  • the three through holes 12 are arranged in a straight line along the longitudinal direction of the metal substrate 10, as shown in FIG.
  • the three through holes 12 are arranged along a center line J1 that passes through the widthwise center of the metal substrate 10 and extends in the lengthwise direction of the metal substrate 10 .
  • the mounting hole 13 is used when mounting the airtight terminal 1 to an object to be mounted.
  • the mounting holes 13 are formed, for example, through the metal substrate 10 .
  • a fastening member such as a screw (not shown) is screwed into the electrical equipment to be attached through the attachment hole 13 .
  • the metal substrate 10 of the airtight terminal 1 is fixed to the attachment target.
  • the mounting holes 13 are formed in the bulging portion 11 .
  • the two mounting holes 13 are arranged at positions shifted from the straight line J1 connecting the through holes 12, that is, at positions where the straight line J2 connecting the two mounting holes 13 intersects the straight line J1. In this case, the straight line J2 connecting the two mounting holes 13 is set so as to pass through the center P0 of the metal substrate 10 .
  • connection terminal 20 When the airtight terminal 1 is attached to the attachment target, the connection terminal 20 is positioned outside the attachment target container.
  • the connection terminal 20 has a function of electrically connecting the conductive terminal 50 with an external component 91 such as a circuit board or a bus bar indicated by a two-dot chain line in FIG.
  • the connection terminal 20 is formed, for example, by bending a metal plate into an L shape at right angles.
  • the connection terminal 20 is made of a metal plate such as a steel plate, a copper alloy, or a composite material of a steel plate and copper or a copper alloy.
  • the connection terminal 20 can be made of a low-resistance clad material, for example, made by sandwiching a copper plate between iron plates.
  • a surface 201 on one side of the connection terminal 20 sandwiching the L-shaped bent portion is electrically and physically connected to the outer peripheral surface of the conductive terminal 50 by welding, brazing, or the like.
  • a surface 202 on the other side of the connection terminal 20 sandwiching the L-shaped bent portion is electrically and physically connected to the external component 91 by screwing, welding, brazing, or the like.
  • the surface 202 of the connection terminal 20 that contacts the external component 91 is provided at a position farther from the metal substrate 10 than the end of the conductive terminal 50 .
  • connection terminal 20 when viewed in the extending direction of the conductive terminal 50, that is, in the axial direction of the conductive terminal 50, the connection terminal 20 is connected to the external component 91 at a position farther from the metal substrate 10 than the end portion of the conductive terminal 50.
  • connection terminal 20 has an elastic portion 21 as shown in FIG.
  • the elastic portion 21 is located between the region 201 connected to the conductive terminal 50 and the region 202 connected to the external component 91 of the connection terminal 20 , and is more elastic than the other regions 201 and 202 in the connection terminal 20 . It is configured to be easily deformed elastically.
  • the elastic portion 21 is a portion of the connection terminal 20 that is positioned between a region 201 connected to the conductive terminal 50 and a region 202 connected to the external component 91 and is bent substantially at right angles. be.
  • the elastic portion 21 has a function of absorbing and relaxing strain and vibration transmitted between the external component 91 and the conductive terminal 50 .
  • the glass filler 30 can be composed of soft glass having electrical insulation such as soda barium glass.
  • the glass filler 30 is filled between the through holes 12 of the metal substrate 10 and the conductive terminals 50 and solidified, thereby sealing between the inner diameter portion of the through holes 12 and the outer diameter portion of the conductive terminals 50 . ing. Thereby, the glass filler 30 hermetically seals the periphery of the conductive terminal 50 and supports and fixes the conductive terminal 50 while insulating the conductive terminal 50 from the metal substrate 10 .
  • the insulating member 40 is made of a member having electrical insulation and rigidity, such as engineering plastics or ceramics.
  • the insulating member 40 is provided on the metal substrate 10 at a position outside the compressor container when the airtight terminal 1 is attached to an electric compressor or the like.
  • the insulating member 40 is formed in a so-called stepped flange shape.
  • a conductive terminal 50 is passed through the inside of the insulating member 40 .
  • a portion of the insulating member 40 enters the through hole 12 and covers the outer surface of the glass filler 30 and the periphery of the through hole 12 in the metal substrate 10 .
  • the conductive terminal 50 is made of a conductive metal material and has a cylindrical bar shape as a whole.
  • the conductive terminal 50 is passed through the through hole 12 and penetrates the metal substrate 10 in the thickness direction.
  • the conductive terminal 50 and the metal substrate 10 are insulated by the glass filler 30 .
  • the conductive terminal 50 has a function of electrically connecting the inside and the outside of the sealed container to which the airtight terminal 1 is attached.
  • the above-described external component 91 is connected to the end portion of the conductive terminal 50 on the outside of the electric compressor.
  • An end portion of the conductive terminal 50 on the inner side of the electric compressor is inserted into, for example, a receptacle terminal 92 .
  • the receptacle terminals 92 are connected to, for example, motor windings of an electric compressor.
  • the conductive terminal 50 has a large diameter portion 51 and a small diameter portion 52 with different outer diameters, and is formed in a so-called stepped columnar bar shape having a step portion 53 .
  • the large-diameter portion 51 includes a region covered with the glass filler 30, as shown in FIG.
  • the large-diameter portion 51 includes a portion of the conductive terminal 50 that is exposed to the outside of the mounting target when the airtight terminal 1 is mounted on the mounting target. That is, the portion of the conductive terminal 50 to which the external component 91 is attached is formed in the large diameter portion 51 .
  • the small diameter portion 52 includes a portion of the conductive terminal 50 that is located inside the attachment target when the airtight terminal 1 is attached to the attachment target. That is, the portion of the conductive terminal 50 that is inserted into the receptacle terminal 92 is formed in the small diameter portion 52 .
  • the outer diameter Da2 of the small diameter portion 52 is set smaller than the outer diameter Da1 of the large diameter portion 51.
  • the outer diameter Da1 of the large diameter portion 51 can be set, for example, within the range of 4.6 mm to 6.0 mm.
  • the outer diameter Da2 of the small diameter portion 52 can be set within the range of 3.0 mm to 3.4 mm.
  • the conductive terminal 50 further has a retaining portion 54 .
  • the retaining portion 54 has a function of preventing the protective member 60 attached to the conductive terminal 50 from falling off from the conductive terminal 50 .
  • the retaining portion 54 is provided in the middle of the entire length of the small diameter portion 52 .
  • the retaining portion 54 is provided on the side opposite to the metal substrate 10 with respect to the protective member 60 , that is, on the distal end side of the conductive terminal 50 , and protrudes radially outward from the conductive terminal 50 . formed.
  • the retainer portion 54 may have a seamless integral structure with the small-diameter portion 52 . Further, the retainer portion 54 may have a configuration in which an annular member configured separately from the small diameter portion 52 is fixed to the small diameter portion 52 by welding or the like.
  • the conductive terminal 50 is composed of a composite material with copper as a core material.
  • the conductive terminal 50 includes a core material 501 and an outer skin material 502 .
  • the core material 501 is provided at the center in the radial direction of the conductive terminal 50 .
  • the core material 501 is made of a member having an electrical resistance smaller than that of the outer skin material 502, such as oxygen-free copper. As shown in FIG. 4, the outer diameter E of the core material 501 is constant over the entire length of the conductive terminal 50 .
  • the outer skin material 502 is positioned radially outward of the conductive terminal 50 and covers the periphery of the core material 501 to constitute the outer surface of the conductive terminal 50 .
  • the outer skin material 502 has higher electrical resistance than the core material 501, but has higher strength, that is, higher rigidity and heat resistance than the outer skin material 502, and is made of a member that is excellent in plating workability, welding workability, and the like.
  • the skin material 502 is made of a material having a coefficient of thermal expansion equal to that of the glass filler 30 or a value between that of the glass filler 30 and the core material 501 .
  • the skin material 502 can be made of, for example, Fe--Ni alloy, Fe--Cr alloy, or the like.
  • the small-diameter portion 52, the stepped portion 53, and the retainer portion 54 are formed, for example, by cutting and removing the portion of the skin material 502 indicated by the chain double-dashed line in FIG. can be manufactured.
  • the skin material 502 has a thickness t ⁇ b>2 at the small diameter portion 52 that is thinner than a thickness t ⁇ b>1 at the large diameter portion 51 .
  • the thickness dimension t1 of the skin material 502 at the large diameter portion 51 is greater than the thickness dimension t2 of the skin material 502 at the small diameter portion 52 .
  • the conductive terminal 50 of this embodiment has an outer skin material 502 .
  • the skin material 502 functions as a cushioning member that reduces the difference in expansion coefficient between the core material 501 and the glass filler 30 .
  • the outer diameter E of the core material 501 is set to be less than 50% of the outer diameter Da1 of the large diameter portion 51 .
  • the outer diameter E of the core material 501 is preferably 42% or less of the outer diameter Da1 of the large diameter portion 51.
  • the thickness t1 of the skin material 502 at the large diameter portion 51 is set to be at least twice the thickness t2 of the skin material 502 at the small diameter portion 52 .
  • the thickness t1 of the skin material 502 in the large diameter portion 51 is set to 1 mm or more, and the thickness t2 of the skin material 502 in the small diameter portion 52 is set to 0.5 mm or more.
  • the airtight terminal 1 further includes a locking portion 2.
  • the locking portion 2 is provided on the glass filler 30 or the conductive terminal 50 and has a function of locking onto the protective member 60 to define the position of the protective member 60 .
  • the locking portion 2 is composed of a stepped portion 53 formed at the boundary portion between the large diameter portion 51 and the small diameter portion 52 of the conductive terminal 50 .
  • the protective member 60 is made of a material having electrical insulation and elasticity, such as a rubber material such as hydrogenated nitrile rubber.
  • the protective member 60 is detachably attached to a portion of the conductive terminal 50 that is located inside the compressor container to which it is attached.
  • the protective member 60 is formed in a cylindrical shape as a whole, and the conductive terminal 50 is passed through the inner side of the cylindrical shape to cover the periphery of the conductive terminal 50 .
  • the end portion of the protective member 60 on the metal substrate 10 side is in close contact with the metal substrate 10 or the glass filler 30 .
  • the protective member 60 has a function of suppressing the intrusion of conductive foreign matter such as metal powder, which is contained in the refrigerant or the lubricating oil and which is generated by abrasion of the compression mechanism, around the conductive terminal 50 on the surface of the glass filler 30. . That is, the protective member 60 has a function of protecting the airtight terminal 1 from insulation failure due to accumulation of conductive foreign matter.
  • the protective member 60 is formed in a stepped cylindrical shape as a whole.
  • the protective member 60 has a distal end portion 61 and a proximal end portion 62 .
  • the tip portion 61 is a portion of the protective member 60 located on the side opposite to the metal substrate 10 .
  • the base end portion 62 is a portion of the protective member 60 located on the metal substrate 10 side.
  • An outer diameter Db1 of the distal end portion 61 is smaller than an outer diameter Db2 of the proximal end portion 62 .
  • the protective member 60 is formed in a stepped cylindrical shape as a whole due to the difference in outer diameter between the distal end portion 61 and the proximal end portion 62 .
  • the protective member 60 also has a holding portion 63 , a non-contact portion 64 , a restricting portion 65 and a receiving portion 66 .
  • the holding portion 63 , the non-contact portion 64 , and the restricting portion 65 are provided inside the cylindrical shape of the protective member 60 .
  • the holding portion 63 is provided on the side of the protective member 60 opposite to the metal substrate 10 , that is, on the side opposite to the metal substrate 10 with respect to the restricting portion 65 .
  • the holding portion 63 is provided over the entire area inside the distal end portion 61 and part of the inside of the proximal end portion 62 .
  • the inner diameter d1 of the holding portion 63 is smaller than the outer diameter Da2 of the conductive terminal 50, which is the small diameter portion 52 in this case.
  • a plurality of concave-convex shapes or groove shapes are formed on the inner surface of the holding portion 63 . Accordingly, when the protective member 60 is attached to the conductive terminal 50 , the holding portion 63 tightens and holds the small diameter portion 52 of the conductive terminal 50 .
  • the non-contact portion 64 is provided inside the base end portion 62 and formed in a cylindrical shape connected to the holding portion 63 .
  • the inner diameter d2 of the non-contact portion 64 is larger than the inner diameter d1 of the holding portion 63 and the outer diameter of the conductive terminal 50, which is larger than the outer diameter Da1 of the large diameter portion 51 in this case. Therefore, when the protective member 60 is attached to the conductive terminal 50 , the inner surface of the non-contact portion 64 does not contact the outer surface of the conductive terminal 50 , and the gap S ⁇ b>1 is formed between the non-contact portion 64 and the conductive terminal 50 . is formed.
  • the restricting portion 65 is provided on the metal substrate 10 side with respect to the holding portion 63 .
  • the restricting portion 65 has a function of contacting the locking portion 2 and restricting the movement of the protecting member 60 toward the metal substrate 10 when the protecting member 60 is attached to the conductive terminal 50 .
  • the restricting portion 65 is configured by a step portion formed between the bottom portion of the non-contact portion 64 , that is, the holding portion 63 and the non-contact portion 64 .
  • the receiving portion 66 is located outside the protective member 60 and is formed in a step portion formed by the difference in outer diameter between the distal end portion 61 and the proximal end portion 62 .
  • the receiving portion 66 contacts the receptacle terminal 92 when the small diameter portion 52 of the conductive terminal 50 is inserted into the receptacle terminal 92 by a predetermined amount as shown in FIG. This can prevent the conductive terminal 50 from being excessively inserted into the receptacle terminal 92 .
  • the base end portion 62 is configured to include a deformation portion 621 . That is, the protective member 60 integrally has the deformation portion 621 .
  • the deformation portion 621 is provided on the metal substrate 10 side with respect to the holding portion 63 in the protective member 60 . That is, the deformable portion 621 is located on the metal substrate 10 side of the base end portion 62 , and when the protective member 60 is attached to the conductive terminal 50 , either one or both of the metal substrate 10 and the glass filler 30 are deformed. It is the part that comes into contact with the
  • the deformation portion 621 is formed mainly in the direction in which the protective member 60 is compressed, that is, when the protective member 60 is pushed toward the metal substrate. It elastically deforms in the direction of being pushed against 10 .
  • the inner diameter of the deformation portion 621 is larger than the outer diameter of the conductive terminal 50, which is the outer diameter Da1 of the large diameter portion 51 in this case.
  • the inner diameter of the deformation portion 621 is larger than the inner diameter d2 of the non-contact portion 64 .
  • the deformable portion 621 is formed thinner than the portion of the protective member 60 other than the deformable portion 621 . Therefore, when the protective member 60 receives a compressive load in the axial direction of the protective member 60 , the deformable portion 621 is more likely to be elastically deformed than the portion of the protective member 60 other than the deformable portion 621 . In other words, portions of the protective member 60 other than the deformable portion 621 are less likely to deform even when a compressive load is applied to the protective member 60 in the axial direction.
  • the deformation portion 621 is formed in a funnel shape or a truncated cone shape that widens outward in the radial direction of the conductive terminal 50 from the distal end portion 61 side toward the proximal end portion 62 side.
  • the deformable portion 621 is deformed not only in the direction in which the protective member 60 is compressed, but also in the radial direction outside the base end portion 62 . It elastically deforms so as to expand radially outward of the conductive terminal 50 . Accordingly, when the protective member 60 is attached to the conductive terminal 50 , the deformable portion 621 firmly adheres to either one or both of the metal substrate 10 and the glass filler 30 .
  • the length dimension of the natural length of the protection member 60 when no load is applied to the protection member 60 and the protection member 60 is not elastically deformed is H1
  • the length dimension of the holding portion 63 is H2.
  • a distance dimension L1 between a portion of the metal substrate 10 or the glass filler 30 with which the deformation portion 621 contacts and the retaining portion 54 is set to be equal to or less than the length dimension H1 of the protective member 60 in its natural length.
  • the deformation portion 621 mainly contacts the metal substrate 10 . Therefore, the distance dimension L1 between the metal substrate 10 and the retaining portion 54 is set to be equal to or less than the length dimension H1 of the protective member 60 in its natural length.
  • the distance dimension L2 between the locking portion 2 and the retaining portion 54 is set longer than the length dimension H2 of the holding portion 63 .
  • the holding portion 63 is arranged between the locking portion 2 and the retaining portion 54 , and the protective member 60 is kept in contact with the metal substrate 10 until the restricting portion 65 contacts the locking portion 2 .
  • a gap S2 is formed between the protective member 60 and the retaining portion 54.
  • the protective member 60 can be configured to further have a groove portion 67 .
  • the groove portion 67 is provided between the distal end portion 61 and the proximal end portion 62 .
  • the groove portion 67 surrounds the outer periphery of the distal end portion 61 and is formed in a groove shape by digging a stepped portion formed by a difference in outer diameter between the distal end portion 61 and the proximal end portion 62 toward the deformed portion 621 side, that is, toward the proximal end portion 62 side. It is That is, the receiving portion 66 is formed into an annular convex shape surrounding the periphery of the tip portion 61 by the groove portion 67 .
  • the protective member 60 is attached to the conductive terminal 50 after sealing with the glass filler 30, for example.
  • the protective member 60 is passed through the small-diameter portion 52 from the distal end side of the small-diameter portion 52 and pushed toward the metal substrate 10 .
  • the holding portion 63 exceeds the retaining portion 54
  • the retaining portion 63 enters between the locking portion 2 and the retaining portion 54 .
  • the holding portion 63 presses and holds the small diameter portion 52 radially inward by the elastic force of the holding portion 63 .
  • the deformable portion 621 comes into contact with one or both of the metal substrate 10 and the glass filler 30 and is elastically deformed. As a result, the deformation portion 621 firmly adheres to one or both of the metal substrate 10 and the glass filler 30 .
  • the restricting portion 65 comes into contact with the engaging portion 2, movement of the protective member 60 toward the metal substrate 10 is restricted. Thereby, the position of the protective member 60 with respect to the metal substrate 10 and the conductive terminal 50 is determined, and the protective member 60 is attached to the conductive terminal 50 .
  • the restricting portion 65 and the locking portion 2 define the amount of deformation of the deformation portion 621, that is, the amount of crushing.
  • the airtight terminal 1 includes the metal substrate 10, the plurality of conductive terminals 50, the glass filler 30, the protective member 60, and the locking portion 2.
  • a plurality of through holes 12 are formed in the metal substrate 10 .
  • a conductive terminal 50 is passed through each through hole 12 .
  • the glass filler 30 has electrical insulation properties, and is filled between the through hole 12 and the conductive terminal 50 to seal the gap between the through hole 12 and the conductive terminal 50 .
  • the protective member 60 is made of a material having electrical insulation and elasticity, and the conductive terminal 50 is passed through the protective member 60 to cover the conductive terminal 50 .
  • the locking portion 2 is provided on either the conductive terminal 50 or the glass filler 30 .
  • the protection member 60 also has a holding portion 63 and a deformation portion 621 .
  • the holding portion 63 is provided on the side of the protective member 60 opposite to the metal substrate 10 side.
  • the holding portion 63 is formed to have an inner diameter smaller than the outer diameter of the conductive terminal 50 , in this case, the outer diameter Da ⁇ b>2 of the small diameter portion 52 , and has the function of holding the conductive terminal 50 .
  • the deformation portion 621 is provided at the end portion on the metal substrate 10 side, and when the protective member 60 is attached to the conductive terminal 50 , the deformation portion 621 is in contact with either one or both of the metal substrate 10 and the glass filler 30 and is compressed. It is configured to be elastically deformable in a direction.
  • the deformed portion 621 is in close contact with either or both of the metal substrate 10 and the glass filler 30, and the protective member 60 covers the periphery of the conductive terminal 50, which causes poor insulation of the airtight terminal 1. It is possible to prevent conductive foreign matter from adhering and accumulating around the conductive terminal 50 .
  • the inventor of the present application believes that if the protective member 60 is pushed too far toward the metal substrate 10 when attaching the protective member 60 to the conductive terminal 50, the deformed portion 621 is excessively deformed, and the deformed portion 621 is reversed, that is, warped. I found something to do. If the deformable portion 621 warps, a gap is generated between the metal substrate 10 or the glass filler 30 and the deformable portion 621 , and as a result, foreign matter may easily enter the inside of the protective member 60 .
  • the protective member 60 further has a restricting portion 65 .
  • the restricting portion 65 contacts the locking portion 2 to restrict the movement of the protective member 60 toward the metal substrate 10 .
  • the protective member 60 can be appropriately attached to the conductive terminal 50 .
  • the protective member 60 is detachably attached to the conductive terminal 50 . According to this, for example, when the protective member 60 deteriorates, the protective member 60 can be easily replaced.
  • the deformed portion 621 is formed to have an inner diameter larger than the outer diameter of the conductive terminal 50, which is the outer diameter Da1 of the large diameter portion 51 in this case.
  • the deformable portion 621 is configured to be elastically deformable in the radially outward direction of the conductive terminal 50 when the protective member 60 is attached to the conductive terminal 50 . Therefore, according to the present embodiment, the deformable portion 621 can be brought into tighter contact with the metal substrate 10 or the glass filler 30 at the portion where the deformable portion 621 contacts. As a result, it is possible to more effectively suppress the intrusion of conductive foreign matter into the protective member 60 .
  • the protective member 60 also has a distal end portion 61 and a proximal end portion 62 .
  • An outer diameter Db1 of the distal end portion 61 is set smaller than an outer diameter Db2 of the proximal end portion 62 .
  • the distal end portion 61 has a holding portion 63 and is provided on the side opposite to the metal substrate 10 with respect to the proximal end portion 62 .
  • the base end portion 62 is configured to include a deformation portion 621 .
  • the deformation portion 621 provided at the base end portion 62 is deformed and comes into close contact with the metal substrate 10 .
  • the deformation of the deformable portion 621 reaches the holding portion 63 of the distal end portion 61 and the inside of the holding portion 63 expands, the holding force of the holding portion 63 with respect to the conductive terminal 50 is reduced, and the protective member 60 is likely to come off. .
  • the protection member 60 of the present embodiment further has grooves 67 .
  • the groove portion 67 is provided between the distal end portion 61 and the proximal end portion 62 .
  • the groove portion 67 surrounds the outer periphery of the distal end portion 61, and the stepped portion formed by the difference in outer diameter between the distal end portion 61 and the base end portion 62, in this case, the surface forming the receiving portion 66 is dug down toward the deformation portion 621 side. It is formed in a groove shape.
  • the conductive terminal 50 further has a retaining portion 54 .
  • the retaining portion 54 is provided on the side opposite to the metal substrate 10 with respect to the protective member 60 .
  • the retaining portion 54 protrudes radially outward from the conductive terminal 50 and has an outer diameter larger than that of the holding portion.
  • the retaining portion 54 has a function of preventing the protective member 60 from falling off from the conductive terminal 50 . This can prevent the protective member 60 from coming off from the conductive terminal 50 when handling the airtight terminal 1 or during normal use of a device to which the airtight terminal 1 is attached. Therefore, according to the present embodiment, the attachment of the protective member 60 to the conductive terminal 50 can be ensured. Adhering to and accumulating on the surface can be suppressed more reliably.
  • the distance dimension L2 between the locking portion 2 and the retaining portion 54 is set longer than the length dimension H2 of the holding portion 63. According to this, the holding portion 63 can be reliably arranged between the locking portion 2 and the retainer portion 54 . That is, it is possible to prevent the inner surface of the holding portion 63 from floating from the outer surface of the conductive terminal 50 due to the retaining portion 54 being positioned inside the holding portion 63 . Thereby, when the protective member 60 is attached to the conductive terminal 50 , the inner side surface of the holding portion 63 can be reliably brought into contact with the outer side surface of the conductive terminal 50 . As a result, the holding portion 63 can firmly hold the outer surface of the conductive terminal 50 .
  • the metal board 10 further has two mounting holes 13 .
  • the attachment hole 13 is formed through the metal substrate 10, and a fastening member (not shown) for attaching the metal substrate 10 to an attachment target is inserted.
  • Each mounting hole 13 is arranged at a position where a straight line J2 connecting two mounting holes 13 intersects a straight line J1 connecting each through hole 12, as shown in FIG.
  • the glass is The effect on the portion sealed with the filler 30 can be minimized.
  • the deformation of the container such as the electric compressor is transmitted to the mounting hole 13 portion, which is the connection point with the container, and attempts to deform the metal substrate 10 in a curved direction along the straight line J2 connecting the mounting holes 13 .
  • the portion of the metal substrate 10 along the straight line J1 intersecting the straight line J2 is difficult to deform. Therefore, by arranging the mounting holes 13 so that the straight line J2 connecting the two mounting holes 13 intersects the straight line J1 connecting the through holes 12, the portion sealed with the glass filler 30, that is, the through hole 12 and its periphery can be minimized. As a result, it is possible to effectively suppress the occurrence of poor airtightness in the portion sealed with the glass filler 30 .
  • the airtight terminal 1 when the airtight terminal 1 is attached to an electric compressor driven at a low voltage of 48V, for example, the airtight terminal 1 is less than a conventional compressor driven at a high voltage of 300V to 600V. 1 is increased.
  • the current applied to the airtight terminal 1 in the case of an electric compressor driven at 300V to 600V, the current applied to the airtight terminal 1 is about 10A to 20A.
  • the current applied to the airtight terminal 1 is as high as 100A to 120A.
  • the airtight terminal 1 in order to adapt the airtight terminal 1 to a low-voltage electric compressor, it is necessary to adapt the conductive terminal 50 to a large current.
  • the conductive terminals 50 are made of a low-resistance material such as a copper alloy or an aluminum alloy, the difference in heat resistance and thermal expansion coefficient of the conductive terminals 50 becomes a problem when sealing with the glass filler 30 . Therefore, in order to reduce the influence of heat during sealing, it is conceivable to use a so-called glass sealing material such as Fe—Ni alloy or Fe—Cr alloy for the conductive terminal 50 .
  • the material for glass sealing has a higher electrical resistance than low-resistance materials such as copper alloys and aluminum alloys, if the conductive terminal 50 is to be adapted to a large current, the conductive terminal 50 becomes thicker, resulting in an airtight terminal. 1 becomes larger.
  • the conductive terminal 50 of this embodiment has a core material 501 and an outer skin material 502 . That is, the conductive terminal 50 is composed of a composite material having a core material 501 and a skin material 502 .
  • the core material 501 is formed to have a constant outer diameter E.
  • the outer skin material 502 is made of a member that has higher rigidity and heat resistance than the core material 501 and has a coefficient of thermal expansion equivalent to that of the glass filler 30 or a value between that of the glass filler 30 and the core material 501 .
  • the electrical resistance of the conductive terminal 50 as a whole is minimized, and at the time of sealing, The influence of heat can be reduced as much as possible.
  • the conductive terminal 50 can be made thinner than when the conductive terminal 50 is made only of a material for glass sealing, and the size of the conductive terminal 50 can be suppressed. It is possible to reduce the influence of heat that the conductive terminal 50 receives during sealing, compared to the case where it is configured.
  • the size of the conductive terminal 50 can be suppressed as much as possible while making the conductive terminal 50 compatible with a large current, but the conductive terminal 50 tends to be thicker than the conventional configuration.
  • the conductive terminal 50 becomes thicker, the insertion/extraction load on the receptacle terminal 92 connected to the windings of the motor, for example, becomes larger, resulting in a problem of reduced workability when attaching the airtight terminal 1 .
  • the inventors of the present application focused on the fact that the energization path of the airtight terminal 1 is mainly the path indicated by the dashed line I in FIG.
  • the path indicated by the dashed line I is such that the current flows from the outer peripheral surface of one end of the conductive terminal 50 through the outer skin material 502, enters the core material 501, travels through the core material 501, reaches the other end, and It exits from the outer peripheral surface of the other end of the conductive terminal 50 through the material 502 . That is, current enters and exits the core material 501 via the skin material 502 .
  • the inventor of the present application reduced the thickness of only the outer skin material 502 in the portion that contacts the receptacle terminal 92, thereby reducing the resistance component on the current path indicated by the dashed line I and thinning the conductive terminal 50. It was found that it is possible to reduce the insertion and removal load by
  • the conductive terminal 50 of the embodiment further has a large diameter portion 51 and a small diameter portion 52 .
  • the large-diameter portion 51 is a portion of the conductive terminal 50 that includes the portion covered with the glass filler 30 .
  • the large-diameter portion 51 includes a portion exposed to the outside of the container to which the airtight terminal 1 is attached and a portion sealed with the glass filler 30 .
  • the small diameter portion 52 is provided on the side of the conductive terminal 50 opposite to the metal substrate 10 with respect to the large diameter portion 51 .
  • the small diameter portion 52 is set to have a smaller outer diameter than the large diameter portion 51 . That is, the outer diameter Da2 of the small diameter portion 52 is smaller than the outer diameter Da1 of the large diameter portion 51 .
  • the small diameter portion 52 is formed by making the skin material 502 thinner than the large diameter portion 51 . That is, the thickness dimension t2 of the skin material 502 at the small diameter portion 52 is smaller than the thickness dimension t1 of the skin material 502 at the large diameter portion 51 .
  • the portion of the conductive terminal 50 covered with the glass filler 30 is composed of the large-diameter portion 51 having an outer diameter larger than that of the small-diameter portion 52 . Therefore, according to the present embodiment, since the portion of the conductive terminal 50 covered with the glass filler 30 is thickened, it is possible to reduce the influence of heat on the conductive terminal 50 during sealing as much as possible.
  • a small diameter portion 52 is formed on the side of the conductive terminal 50 opposite to the metal substrate 10 with respect to the large diameter portion 51 .
  • the inserted portion is the small-diameter portion 52, so that the insertion/removal load can be reduced compared to the case where the large-diameter portion 51 is inserted.
  • a composite material is used for the conductive terminal 50, it is possible to reduce the influence of heat at the time of sealing and to improve the workability at the time of attaching the airtight terminal 1.
  • the receptacle terminal 92 to which the conductive terminal 50 is connected can be the same as a conventional receptacle terminal.
  • the outer diameter E of the core material 501 is set to be less than 50% of the outer diameter Da1 of the large diameter portion 51. According to this, the influence of heat can be more effectively reduced in the large-diameter portion 51 which is easily affected by heat during sealing. As a result, it is possible to more reliably prevent airtightness failure from occurring in the sealed portion of the glass filler 30 .
  • the thickness t1 of the skin material 502 in the large diameter portion 51 is set to 1 mm or more, and the thickness t2 of the skin material 502 in the small diameter portion 52 is set to 0.5 mm or more. According to this, even in the small-diameter portion 52 in which the skin material 502 is thinner than the large-diameter portion 51, the effect of the thickness t2 of the skin material 502 can be appropriately obtained.
  • FIG. 1a of the present embodiment differs from the airtight terminal 1 of the first embodiment in specific configurations of the conductive terminal 50 and the protective member 60. As shown in FIG.
  • the airtight terminal 1a of the present embodiment includes a conductive terminal 50a and a protective member 60a instead of the conductive terminal 50 and the protective member 60 of the airtight terminal 1.
  • FIG. Further, the airtight terminal 1a of the present embodiment does not have the groove portion 67 in the airtight terminal 1 of the first embodiment.
  • the conductive terminal 50a has a body portion 55 and a retaining portion 54a.
  • the body portion 55 constitutes the main portion of the conductive terminal 50a, and is formed in a columnar bar shape having a constant outer diameter over the entire length of the body portion 55 . That is, the main body portion 55 is formed into a shape without a stepped portion, that is, a so-called straight pin.
  • the retaining portion 54a has a structure corresponding to the retaining portion 54 of the first embodiment.
  • the retainer portion 54a of the present embodiment is provided by fixing, for example, an annular part configured separately from the main body portion 55 to the main body portion 55 by welding or the like. In this case, the retaining portion 54a may be made of the same material as that of the body portion 55, or may be made of a different material.
  • the protective member 60a has a restricting portion 65a instead of the restricting portion 65 of the first embodiment.
  • a portion of the surface of the glass filler 30 with which the restricting portion 65a contacts is used as the engaging portion 3.
  • the restricting portion 65a is provided on the metal substrate 10 side with respect to the holding portion 63, similarly to the restricting portion 65 of the first embodiment.
  • the regulating portion 65a comes into contact with the locking portion 3 and moves the protective member 60 toward the metal substrate 10, similarly to the regulating portion 65 of the first embodiment. have the function of regulating
  • the restricting portion 65a is configured by projecting the bottom portion of the non-contact portion 64 toward the metal substrate 10 in a cylindrical shape, and the end portion of the cylindrical shape on the metal substrate 10 side.
  • the conductive terminal 50a can be configured such that the body portion 55, which is the main portion of the conductive terminal 50a, is a so-called straight pin. Therefore, the number of man-hours for manufacturing the conductive terminal 50a can be reduced as compared with the case where the small-diameter portion 52 and the retainer portion 54 are formed by cutting.
  • the airtight terminals 1 and 1a may be configured to include a metal substrate 10b shown in FIG. 10 instead of the metal substrate 10.
  • FIG. 10 the metal substrate 10b differs in the positions of the two mounting holes 13 from the metal substrate 10 of each of the above embodiments.
  • the two mounting holes 13 are provided on an extension line of the straight line J1 connecting the through holes 12 .
  • a straight line J1 connecting the through holes 12 and a straight line J2 connecting the two mounting holes 13 overlap each other.
  • each of the above embodiments can be configured by combining or replacing the features of each embodiment with each other.
  • the airtight terminal 1a of the second embodiment can be configured to include the groove portion 67 of the airtight terminal 1 of the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
PCT/JP2022/003363 2022-01-28 2022-01-28 気密端子 Ceased WO2023145008A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2023576525A JP7578338B2 (ja) 2022-01-28 2022-01-28 気密端子
KR1020247019649A KR102901925B1 (ko) 2022-01-28 2022-01-28 기밀 단자
PCT/JP2022/003363 WO2023145008A1 (ja) 2022-01-28 2022-01-28 気密端子
CN202280089575.8A CN118575368A (zh) 2022-01-28 2022-01-28 气密端子
EP22923872.0A EP4471992A4 (en) 2022-01-28 2022-01-28 AIRTIGHT TERMINAL
US18/833,316 US20250158299A1 (en) 2022-01-28 2022-01-28 Airtight terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/003363 WO2023145008A1 (ja) 2022-01-28 2022-01-28 気密端子

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US (1) US20250158299A1 (https=)
EP (1) EP4471992A4 (https=)
JP (1) JP7578338B2 (https=)
KR (1) KR102901925B1 (https=)
CN (1) CN118575368A (https=)
WO (1) WO2023145008A1 (https=)

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USD1060265S1 (en) * 2021-05-17 2025-02-04 Schott Japan Corporation Hermetic terminal

Citations (9)

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JPS5353580U (https=) * 1976-10-12 1978-05-09
JPS53126154A (en) * 1977-04-11 1978-11-04 Nippon Electric Co Method of making sealing terminal
JPS574235U (https=) * 1980-06-10 1982-01-09
JPS57110873U (https=) * 1980-12-26 1982-07-08
JPS5828981U (ja) * 1981-08-21 1983-02-24 本田技研工業株式会社 ハ−メチツクシ−ル
JPS58218780A (ja) * 1982-05-31 1983-12-20 日本電気ホームエレクトロニクス株式会社 気密端子
JPS5918378U (ja) * 1982-07-27 1984-02-03 日本電気ホームエレクトロニクス株式会社 気密端子
JPH05263762A (ja) * 1992-03-18 1993-10-12 Matsushita Refrig Co Ltd 気密端子保護カバー
JP2019212418A (ja) 2018-06-01 2019-12-12 ショット日本株式会社 気密端子

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Publication number Priority date Publication date Assignee Title
KR101748677B1 (ko) * 2013-03-29 2017-06-19 가부시키가이샤 우부카타 세이사쿠쇼 열응동 개폐기 및 그 제조방법
KR102583934B1 (ko) * 2016-09-08 2023-10-05 한온시스템 주식회사 압축기
KR102375243B1 (ko) * 2020-07-16 2022-03-16 한국단자공업 주식회사 충전커넥터

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Publication number Priority date Publication date Assignee Title
JPS5353580U (https=) * 1976-10-12 1978-05-09
JPS53126154A (en) * 1977-04-11 1978-11-04 Nippon Electric Co Method of making sealing terminal
JPS574235U (https=) * 1980-06-10 1982-01-09
JPS57110873U (https=) * 1980-12-26 1982-07-08
JPS5828981U (ja) * 1981-08-21 1983-02-24 本田技研工業株式会社 ハ−メチツクシ−ル
JPS58218780A (ja) * 1982-05-31 1983-12-20 日本電気ホームエレクトロニクス株式会社 気密端子
JPS5918378U (ja) * 1982-07-27 1984-02-03 日本電気ホームエレクトロニクス株式会社 気密端子
JPH05263762A (ja) * 1992-03-18 1993-10-12 Matsushita Refrig Co Ltd 気密端子保護カバー
JP2019212418A (ja) 2018-06-01 2019-12-12 ショット日本株式会社 気密端子

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Title
See also references of EP4471992A4

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Publication number Publication date
JPWO2023145008A1 (https=) 2023-08-03
US20250158299A1 (en) 2025-05-15
JP7578338B2 (ja) 2024-11-06
CN118575368A (zh) 2024-08-30
EP4471992A1 (en) 2024-12-04
EP4471992A4 (en) 2025-11-26
KR20240108470A (ko) 2024-07-09
KR102901925B1 (ko) 2025-12-18

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