WO2015106411A1 - 密封机构及按键装置 - Google Patents

密封机构及按键装置 Download PDF

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Publication number
WO2015106411A1
WO2015106411A1 PCT/CN2014/070667 CN2014070667W WO2015106411A1 WO 2015106411 A1 WO2015106411 A1 WO 2015106411A1 CN 2014070667 W CN2014070667 W CN 2014070667W WO 2015106411 A1 WO2015106411 A1 WO 2015106411A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
front ring
housing
sealing body
abutting portion
Prior art date
Application number
PCT/CN2014/070667
Other languages
English (en)
French (fr)
Inventor
储子奇
陈中会
阮智星
Original Assignee
西门子公司
储子奇
陈中会
阮智星
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 西门子公司, 储子奇, 陈中会, 阮智星 filed Critical 西门子公司
Priority to EP14879222.9A priority Critical patent/EP3096339B1/en
Priority to CN201480045630.9A priority patent/CN105474341B/zh
Priority to US15/022,580 priority patent/US10032572B2/en
Priority to PCT/CN2014/070667 priority patent/WO2015106411A1/zh
Publication of WO2015106411A1 publication Critical patent/WO2015106411A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/041—Casings hermetically closed by a diaphragm through which passes an actuating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts

Definitions

  • the present invention relates to a sealing mechanism and a button device, and more particularly to a sealing mechanism and a button device that can form a sealed space inside a button device.
  • the two-button device can be applied to the human-machine interface of industrial equipment (such as machine tools), allowing users to control industrial equipment through two-button devices, such as powering on or off industrial equipment.
  • the double button device is provided with a sealing gasket for blocking foreign matter (such as water, dust, etc.) from entering the inside of the double button device to further prevent foreign matter from entering the inside of the double button device and causing damage to the button assembly.
  • the known gasket is formed with a perforation which causes the above-mentioned gasket to fail to form a sealed space during the sealing process, so that the gasket cannot effectively block foreign matter from entering the inside of the double button device.
  • the present invention provides a sealing mechanism and a button device that can form a sealed space inside a button device to solve the above problems.
  • the present invention discloses a sealing mechanism suitable for use in a button device, the button device comprising a button base, the sealing mechanism comprising a front ring housing, a socket housing and a sealing member.
  • the front ring housing is mounted to the button base
  • the socket housing is mounted to the front ring housing.
  • the sealing member includes a sealing body and a sealing wall, and the sealing wall is annularly disposed on the sealing body for fixing to the socket housing.
  • the lamp holder housing pushes the periphery of the sealing body with the front ring housing when being mounted on the front ring housing, so that the sealing body and the front ring housing together form a sealed space a sealing a first slot on the button base.
  • the present invention further discloses that the sealing body has a first surface and a second surface opposite to the first surface, and the first surface and the second surface are respectively used A first key cover and a first top rod of the button device are abutted, and the second surface and the front ring housing together define the sealed space.
  • the sealing member further includes a first abutting portion disposed at the first ram of the sealing body, and two of the first abutting portions.
  • the side protrudes from the first surface and the second surface to respectively abut the first key cover and the first top rod.
  • the present invention further discloses that the thickness of the first abutting portion is greater than the thickness of the sealing body.
  • the present invention further discloses that the sealed space is further configured to seal a second slot on the button base, and the first surface and the second surface are further respectively used to Abutting a second key cover and a second ejector pin of the button device, and the sealing member further includes a second abutting portion disposed at the sealing body corresponding to the second ram, Two sides of the second abutting portion protrude from the first surface and the second surface for respectively abutting the second key cover and the second ram.
  • the present invention further discloses that the sealing body further has an elastic connecting portion connecting the first abutting portion and the second abutting portion.
  • the sealing member further includes a first rib portion disposed at a junction of the sealing body and the sealing wall, the first rib portion facing the The lamp holder housing protrudes.
  • the sealing member further includes a second rib portion disposed at a junction of the sealing body and the sealing wall, the second rib portion facing away The front ring shell protrudes.
  • the present invention further discloses that the socket housing has a fixing a ring structure, and the sealing wall surrounds the fixing ring structure.
  • the lamp holder housing further has a plurality of hook structures for snapping the front ring housing to press the sealing ring structure to seal the seal.
  • the periphery of the body is in the front ring housing.
  • the present invention further discloses a button device including a button base and a sealing mechanism
  • the button base is formed with a first slot
  • the sealing mechanism includes a front ring housing a lamp housing and a sealing member.
  • the front ring housing is mounted to the button base
  • the socket housing is mounted to the front ring housing.
  • the sealing member includes a sealing body and a sealing wall.
  • the sealing wall is annularly disposed on the sealing body for fixing to the socket housing, and the socket housing is mounted on the The front ring housing and the front ring housing respectively push the periphery of the sealing body, so that the sealing body and the front ring housing together form a sealed space to seal the button base
  • the first slot is described.
  • the sealing mechanism of the present invention uses the front ring housing and the socket housing to respectively press the periphery of the sealing body of the sealing member when assembling, so that the sealing body and the front ring housing together form a sealed space to seal the button. a first slot and a second slot on the base.
  • the sealing member can be used to seal the first slot and the second slot on the button base to block foreign matter (such as water, dust, etc.) from entering the button base of the button device to further prevent foreign matter from entering the button.
  • the inside of the base causes damage to the button assembly.
  • FIG. 1 is a schematic diagram of the appearance of a button device according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded view of a button device according to an embodiment of the present invention.
  • FIG. 3 is a schematic exploded view of a key device according to another embodiment of the present invention.
  • 4 is a cross-sectional view of a key device according to an embodiment of the present invention.
  • Figure 5 is a schematic view of a sealing member in accordance with an embodiment of the present invention.
  • FIG. 6 is a schematic view of the sealing member in another view of the embodiment of the present invention.
  • the reference numerals are as follows:
  • FIG. 1 is a schematic diagram of the appearance of a button device 30 according to an embodiment of the present invention
  • FIG. 2 is a schematic exploded view of a button device 30 according to an embodiment of the present invention
  • FIG. 3 is another embodiment of a button device 30 according to an embodiment of the present invention.
  • the button device 30 can be a dual button device, that is, the button device 30 can include two buttons that are applied to a human machine interface of an industrial device such as a machine tool.
  • the application of the button device 30 of the present invention may not be limited to the drawings of the embodiment, such as button loading.
  • the setting 30 can also be a single button device. As for which of the above designs is adopted, it depends on actual needs.
  • the button device 30 includes a button base 32, a sealing mechanism 34, a first key cover 36, a first jack 38, a second key cover 40, and a second jack.
  • the sealing mechanism 34 includes a front ring housing 44 and a socket housing 46.
  • the button base 32 defines a first slot 321 and a second slot 323.
  • the front ring housing 44 is mounted on the button base 32
  • the socket housing 46 is mounted on the front ring housing 44
  • the first key cover 36 is disposed above the socket housing 46
  • the first jack 38 is slidably
  • the first key cover 321 is disposed in the first slot 321 of the button base 32 and corresponds to the first key cover 36.
  • the second key cover 40 is disposed above the socket housing 46 and adjacent to the first key cover 36.
  • the second ram 42 is disposed.
  • the second slot 323 is slidably disposed in the button base 32 and corresponds to the second key cover 40.
  • FIG. 4 is a schematic cross-sectional view of a key device 30 according to an embodiment of the present invention.
  • the first key cover 36 includes a first guide post 361 and a first sliding hook 363 .
  • the front ring housing 44 defines a first through hole 441 and a first slot 443 .
  • the first through hole 441 corresponds to the first guide post 361
  • the first card slot 443 corresponds to the first sliding hook 363 .
  • first sliding hook 363 is slidably disposed in the first card slot 443 to prevent the first key cover 36 from being disengaged from the front ring housing 44.
  • the number and position of the first guide post 361, the first sliding hook 363, the first through hole 441 and the first card slot 443 of the present invention are not limited to those shown in the drawings of the embodiment, and the actual requirements are determined.
  • the second key cover 40 includes a second guide post 401 and two second sliding hooks 403.
  • the front ring housing 44 defines a second through hole 445 and two second card slots 447, and the second through hole 445 corresponds to the second.
  • the guide post 401 and the second slot 447 correspond to the second sliding hook 403.
  • the second guide post 401 can be slidably disposed in the second through hole 445 to move the second key cover 40 up and down relative to the front ring housing 44.
  • the two second sliding hooks 403 are slidably disposed in two
  • the second card slot 447 is configured to prevent the second key cover 40 from being disengaged from the front ring housing 44.
  • the number and position of the second guide post 401, the second sliding hook 403, the second through hole 445, and the second slot 447 of the present invention are not limited to those illustrated in the drawings of the embodiment, and are determined according to actual needs.
  • the sealing mechanism 34 further includes a sealing member 48 disposed between the front ring housing 44 and the socket housing 46.
  • the sealing member 48 includes a sealing body 50 and a sealing wall 52.
  • the sealing wall 52 is annularly disposed on the sealing body 50.
  • the sealing wall 52 can be secured to the socket housing 46, whereby the sealing member 48 can be pre-fixed to the socket housing 46 for subsequent assembly.
  • the socket housing 46 can have a retaining ring structure 461. When the sealing member 48 and the socket housing 46 are assembled, the sealing wall 52 of the sealing member 48 can surround the retaining ring structure 461 of the socket housing 46 to secure the sealing member 48 to the socket housing 46.
  • the sealing member 48 for fixing to the socket housing 46 is not limited to that shown in the drawings of the embodiment, and depends on actual needs.
  • the sealing member 48 may be made of a thermoplastic polyurethane (THERMOPLASTIC URETHANE, TPU) material, which has high oil resistance and is not easily discolored after irradiation with ultraviolet rays, but the present invention is not limited thereto.
  • FIG. 5 is a schematic view of a sealing member 48 according to an embodiment of the present invention
  • FIG. 6 is a schematic view of the sealing member 48 according to an embodiment of the present invention.
  • the socket housing 46 can further have a plurality of hook structures 463
  • the sealing body 50 has a first surface 501 and a second surface 503 of the opposite first surface 501.
  • the sealing member 48 further includes a first rib portion 54 and a second rib portion 56.
  • the first rib portion 54 is disposed at the junction of the sealing body 50 and the sealing wall 52 and protrudes toward the socket housing 46.
  • the second rib portion 56 is disposed at a joint of the sealing body 50 and the sealing wall 52 and protrudes toward the front ring housing 44.
  • the socket housing 46 can be further assembled on the front ring housing 44, and the hook structure 463 of the socket housing 46 can be used for the front of the buckle.
  • Ring housing 44 to The periphery of the sealing body 50 of the sealing member 48 that presses the retaining ring structure 461 of the socket housing 46 is on the front ring housing 44.
  • the socket housing 46 and the front ring housing 44 can be pushed separately.
  • the periphery of the sealing body 50 of the sealing member 48 is squeezed, and the sealing body 50 of the sealing member 48 and the front ring housing 44 together form a sealed space S to seal the first slot 321 on the button base 32. And a second slot 323.
  • the sealing member 48 can be used to seal the first slot 321 and the second slot 323 of the button base 32 to block foreign matter (such as water, dust, etc.) from entering the button base 32 of the button device 30.
  • the button assembly is damaged.
  • the sealing body 50 and the front ring housing 44 together form a sealed space S
  • the first surface 501 and the second surface 503 of the sealing body 50 respectively abut the first key cover 36 and the first top
  • the first surface 501 and the second surface 503 of the sealing body 50 are used to abut the second key cover 40 and the second ram 42 respectively.
  • the first key cover 36 and the first ram 38 respectively abut on the first surface 501 and the second surface 503 of the sealing body 50 without contacting each other
  • the second key cover 40 and the second ejector 42 respectively Abutting on the first surface 501 and the second surface 503 of the sealing body 50 without contacting each other
  • the second jack 42 passes, whereby the above design can further enhance the sealing effect of the sealing member 48.
  • the second surface 503 of the sealing body 50 can define a sealed space S together with the front ring housing 44. Since the second surface 503 is a complete surface, the second surface 503 can define a complete seal with the front ring housing 44. The space S further increases the sealing effect of the sealing member 48.
  • the first rib portion 54 and the second rib portion 56 of the sealing member 48 may be respectively It is deformed by being pressed by the socket housing 46 and the front ring housing 44, and is thus flatly attached to the socket housing 46 and the front ring housing 44.
  • the socket housing 46 and the front ring housing 44 respectively push the periphery of the sealing body 50 of the sealing member 48, the first rib portion 54 and the second rib portion 56 of the sealing member 48 can be illuminated by the lamp
  • the seat housing 46 is pressed against the front ring housing 44 to lie flat against the socket housing 46 and the front ring housing 44 to further enhance the sealing effect of the sealing member 48.
  • the sealing member 48 further includes a first abutting portion 58, and the first key cover 36 has a first triggering portion 365.
  • the first abutting portion 58 is disposed at the first top rod 38 corresponding to the sealing body 50. The two sides of the first abutting portion 58 protrude from the first surface 501 and the second surface 503 of the sealing body 50.
  • both sides of the first abutting portion 58 can be used to respectively abut the first trigger portion 365 of the first key cover 36 and the first jack 38, so that the first key cover 36
  • the first triggering portion 365 drives the first jack 38 through the first abutting portion 58 to trigger a switch (not shown) in the button base 32.
  • the thickness of the first abutting portion 58 is greater than the thickness of the sealing body 50
  • the abutting portion 58 has a greater mechanical strength than the sealing body 50 itself to prevent the sealing member 48 from being broken when the first key cover 36 and the first jack 38 are actuated. That is, the structural design of the first abutting portion 58 of the present invention having a large thickness can be used to increase the service life of the sealing member 48.
  • the first abutting portion 58 may be a platform structure, but the invention is not limited thereto.
  • the first abutting portion 58 of the sealing member 48 is sandwiched by the first triggering portion 365 of the first key cover 36 and the first ram 38, the first triggering portion 365 of the first key cover 36 transmits through
  • the first abutting portion 58 drives the first jack 38 to trigger the switch in the button base 32
  • the first abutting portion 58 and the first triggering portion 365 and the first abutting portion 58 and the first jack 38 are The relative movement amount is small, so the first abutting portion 58 of the present invention is designed to reduce the friction between the first abutting portion 58 and the first triggering portion 365 and the first abutting portion 58 and the first ram 38, thereby further The service life of the sealing member 48 is increased.
  • the sealing member 48 of the present invention can withstand the pressing of the first key cover 36 for more than 5 million times.
  • the sealing member 48 further includes a second abutting portion 60, and the second key cover 40 has a second triggering portion 405.
  • the second abutting portion 60 is disposed at the second apex 42 of the sealing body 50 .
  • the two sides of the second abutting portion 60 protrude from the first surface 501 and the second surface 503 of the sealing body 50 .
  • the two sides of the second abutting portion 60 can be used to respectively abut the second trigger portion 405 and the second jack 42 of the second key cover 40, so that the second key cover 40
  • the second triggering portion 405 drives the second jack 42 through the second abutting portion 60 to trigger a switch (not shown in the figure) in the button base 32.
  • the second abutting portion 60 since the two sides of the second abutting portion 60 protrude from the first surface 501 and the second surface 503 of the sealing body 50, that is, the thickness of the second abutting portion 60 is greater than the thickness of the sealing body 50, The two abutting portions 60 have greater mechanical strength than the sealing body 50 itself to prevent the sealing member 48 from being broken when the second key cover 40 and the second jack 42 are actuated. That is, the structural design of the second abutting portion 60 of the present invention having a large thickness can be used to increase the service life of the sealing member 48.
  • the second abutting portion 60 may be a platform structure, but the invention is not limited thereto.
  • the second abutting portion 60 of the sealing member 48 since the second abutting portion 60 of the sealing member 48 is sandwiched by the second triggering portion 405 of the second key cover 40 and the second ram 42 , the second triggering portion 405 of the second key cover 40 transmits through When the second abutting portion 60 drives the second jack 42 to trigger the switch in the button base 32, the second abutting portion 60 and the second triggering portion 405 and the second abutting portion 60 and the second jack 42 are The structure of the second abutting portion 60 of the present invention can reduce the friction between the second abutting portion 60 and the second abutting portion 405 and the second abutting portion 60 and the second ram 42 and further The service life of the sealing member 48 is increased. After the actual test, the sealing member 48 of the present invention can withstand the pressing of the second key cover 40 for more than 5 million times.
  • the sealing body 50 of the sealing member 48 further has an elastic connecting portion 505 connecting the first abutting portion 58 and the second abutting portion 60, which can be used to provide elasticity, so that the first abutting portion 58 abuts the second abutting portion 58 The part 60 moves up and down.
  • the cross section of the elastic connecting portion 505 can be a U-shaped knot.
  • the structural design of the elastic connecting portion 505 of the present invention may not be limited to the drawings in this embodiment.
  • the sealing mechanism of the present invention uses the front ring housing and the socket housing to respectively press the periphery of the sealing body of the sealing member when assembling, so that the sealing body and the front ring housing together form a sealed space, Sealing the first slot and the second slot on the button base.
  • the sealing member can be used to seal the first slot and the second slot on the button base to block foreign matter (such as water, dust, etc.) from entering the button base of the button device to further prevent foreign matter from entering the button.
  • the inside of the base causes damage to the button assembly.

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  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

一种适用在一按键装置的密封机构，所述按键装置包含有一按键基座（32），所述密封机构（34）包含有一前环壳体（44）、一灯座壳体（46）以及一密封构件（48）。所述前环壳体（44）安装在所述按键基座（32），所述灯座壳体（46）安装在所述前环壳体（44）。所述密封构件（48）包含有一密封本体（50）以及一密封墙体（52），所述密封墙体（52）环设在所述密封本体（50），用以固定在所述灯座壳体（46）。所述灯座壳体（46）在安装在所述前环壳体（44）时与所述前环壳体（44）分别推挤所述密封本体（50）的周边，使所述密封本体（50）与所述前环壳体（44）共同形成一密封空间，以密封所述按键基座（32）上之一第一开槽（321）。具有该密封机构的按键装置。该密封机构能有效的阻隔异物进入按键装置内部。

Description

密封机构及按键装置
技术领域
本发明涉及一种密封机构及按键装置，特别是有关一种可在按键装置内部 形成密封空间的密封机构及按键装置。
背景技术
一般来说，双按键装置可应用于工业设备 (例如工具机)的人机接口 ，使用户 可透过双按键装置操控工业设备，例如将工业设备通电或断电等。 双按键装置 设置有一密封垫片，用以阻隔异物 (例如水、 灰尘等)进入双按键装置内部，以进 一步防止异物进入双按键装置内部而造成按键组件损坏。 然而，公知的密封垫 片上形成有穿孔，其会造成上述的密封垫片在密封过程中无法形成密封空间 ， 从而使得密封垫片无法有效阻隔异物进入双按键装置内部。
发明内容
因此，本发明提供一种可在按键装置内部形成密封空间的密封机构及按键装 置，以解决上述问题。
为了达成上述目的 ，本发明公开一种适用在一按键装置的密封机构，所述按 键装置包含有一按键基座，所述密封机构包含有一前环壳体、 一灯座壳体以及 一密封构件。 所述前环壳体安装在所述按键基座，所述灯座壳体安装在所述前 环壳体。 所述密封构件包含有一密封本体以及一密封墙体，所述密封墙体环设 在所述密封本体，用以固设在所述灯座壳体。 所述灯座壳体在安装在所述前环 壳体时与所述前环壳体分别推挤所述密封本体的周边，使所述密封本体与所述 前环壳体共同形成一密封空间 ，以密封所述按键基座上的一第一开槽。
根据本发明其中之一实施方式，本发明进一步公开所述密封本体具有一第一 表面及相对所述第一表面之一第二表面，所述第一表面与所述第二表面分别用 以抵接所述按键装置的一第一键盖与一第一顶杆，且所述第二表面与所述前环 壳体共同定义所述密封空间。
根据本发明其中之一实施方式，本发明进一步公开所述密封构件进一步包含 有一第一抵接部，设置在所述密封本体对应所述第一顶杆处，所述第一抵接部 的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第一键盖与所 述第一顶杆。
根据本发明其中之一实施方式，本发明进一步公开所述第一抵接部的厚度大 于所述密封本体的厚度。
根据本发明其中之一实施方式，本发明进一步公开所述密封空间进一步用以 密封所述按键基座上之一第二开槽，且所述第一表面与所述第二表面进一步分 别用以抵接所述按键装置的一第二键盖与一第二顶杆，且所述密封构件进一步 包含有一第二抵接部，设置在所述密封本体对应所述第二顶杆处，所述第二抵 接部的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第二键盖 与所述第二顶杆。
根据本发明其中之一实施方式，本发明进一步公开所述密封本体进一步具有 一弹性连接部，连接所述第一抵接部与所述第二抵接部。
根据本发明其中之一实施方式，本发明进一步公开所述密封构件进一步包含 有一第一筋条部，设置在所述密封本体与所述密封墙体连接处，所述第一筋条 部朝所述灯座壳体突伸。
根据本发明其中之一实施方式，本发明进一步公开所述密封构件进一步包含 有一第二筋条部，设置在所述密封本体与所述密封墙体连接处，所述第二筋条 部朝所述前环壳体突伸。
根据本发明其中之一实施方式，本发明进一步公开所述灯座壳体具有一固定 环结构，且所述密封墙体环绕所述固定环结构。
根据本发明其中之一实施方式，本发明进一步公开所述灯座壳体进一步具有 多个卡勾结构，用以卡扣所述前环壳体，以使所述固定环结构下压所述密封本 体的周边在所述前环壳体。
根据本发明其中之一实施方式，本发明进一步公开一种按键装置，包含有一 按键基座以及一密封机构，所述按键基座形成有一第一开槽，所述密封机构包 含有一前环壳体、 一灯座壳体以及一密封构件。 所述前环壳体安装在所述按键 基座，所述灯座壳体安装在所述前环壳体。 所述密封构件包含有一密封本体以 及一密封墙体，所述密封墙体环设在所述密封本体，用以固设在所述灯座壳体， 所述灯座壳体在安装在所述前环壳体时与所述前环壳体分别推挤所述密封本体 的周边，使所述密封本体与所述前环壳体共同形成一密封空间 ，以密封所述按 键基座上的所述第一开槽。
综上所述，本发明的密封机构利用前环壳体与灯座壳体在组装时分别挤压 密封构件的密封本体的周边，使密封本体与前环壳体共同形成密封空间 ，以密 封按键基座上的第一开槽与第二开槽。 这样一来，密封构件便可用来密封按键 基座上的第一开槽与第二开槽，以阻隔异物 (例如水、灰尘等)进入按键装置的按 键基座内部，以进一步防止异物进入按键基座内部而造成按键组件损坏。 有关 本发明之前述及其他技术内容、 特点与功效，在以下配合参考附图之实施例的 详细说明中 ，将可清楚的呈现。
附图说明
图 1为本发明实施例按键装置的外观示意图。
图 2为本发明实施例按键装置的爆炸示意图。
图 3为本发明实施例按键装置在另一视角的爆炸示意图。 图 4为本发明实施例按键装置的剖面示意图。
图 5为本发明实施例密封构件的示意图。
图 6为本发明实施例密封构件在另一视角的示意图。 其中 ，附图标记说明如下：
30 按键装置
32 按键基座
321 第一开槽
323 第二开槽
34 密封机构
36 第一键盖
361 第一导柱
363 第一滑动卡勾
365 第一触发部
38 第一顶杆
40 第二键盖
401 第二导柱
403 第二滑动卡勾
405 第二触发部
42 第二顶杆
44 前环壳体
441 第一穿孔
443 第一卡槽
445 第二穿孔 447 第二卡槽
46 灯座壳体
461 固定环结构
463 卡勾结构
48 密封构件
50 密封本体
501 第一表面
503 第二表面
505 弹性连接部
52 密封墙体
54 第一筋条部
56 第二筋条部
58 第一抵接部
60 第二抵接部
S密封空间
具体实施方式
以下实施例中所提到的方向用语，例如：上、 下、 左、 右、 前或后等，仅 是参考附图的方向。 因此，使用的方向用语是用来说明并非用来限制本发明。 请参阅图 1至图 3 ,图 1为本发明实施例一按键装置 30的外观示意图 ，图 2为 本发明实施例按键装置 30的爆炸示意图 ，图 3为本发明实施例按键装置 30在 另一视角的爆炸示意图。 在此实施例中 ，按键装置 30可为一双按键装置，也就 是说按键装置 30可包含有两个按键，其应用在工业设备 (例如工具机)的人机接 口。 而本发明按键装置 30的应用可不局限于此实施例附图所绘示，例如按键装 置 30也可为一单按键装置。 至于采用上述何者设计，端视实际需求而定。
如图 1至图 3所示，按键装置 30包含有一按键基座 32、 一密封机构 34、 一第一键盖 36、 一第一顶杆 38、 一第二键盖 40以及一第二顶杆 42 ,密封机构 34包含有一前环壳体 44以及一灯座壳体 46 ,且按键基座 32上形成有一第一 开槽 321以及一第二开槽 323。 进一步地，前环壳体 44安装在按键基座 32 , 灯座壳体 46安装在前环壳体 44 ,第一键盖 36设置在灯座壳体 46上方，第一 顶杆 38可滑动地设置在按键基座 32上的第一开槽 321内且对应第一键盖 36 , 第二键盖 40设置在灯座壳体 46上方且与第一键盖 36相邻，第二顶杆 42可滑 动地设置在按键基座 32上的第二开槽 323内且对应第二键盖 40。
请参阅图 2至图 4 ,图 4为本发明实施例按键装置 30的剖面示意图。 如图 2至图 4所示，第一键盖 36包含有一第一导柱 361及一第一滑动卡勾 363 ,前 环壳体 44上形成有一第一穿孔 441及一第一卡槽 443，第一穿孔 441对应第一 导柱 361 ，且第一卡槽 443对应第一滑动卡勾 363。在组装第一键盖 36与前环 壳体 44时，可将第一导柱 361 可滑动地穿设于第一穿孔 441 内 ，以使第一键 盖 36相对前环壳体 44做上下运动，且将第一滑动卡勾 363可滑动地设置在第 一卡槽 443内 ，以防止第一键盖 36脱离于前环壳体 44。而本发明第一导柱 361、 第一滑动卡勾 363、 第一穿孔 441以及第一卡槽 443的数量及位置可不局限于 此实施例附图所绘示，端视实际需求而定。
此外，第二键盖 40包含有一第二导柱 401及两第二滑动卡勾 403 ,前环壳 体 44上形成有一第二穿孔 445及两第二卡槽 447，第二穿孔 445对应第二导柱 401 ,且第二卡槽 447对应第二滑动卡勾 403。 在组装第二键盖 40与前环壳体 44时，可将第二导柱 401 可滑动地穿设于第二穿孔 445内 ，以使第二键盖 40 相对前环壳体 44做上下运动，且将两第二滑动卡勾 403分别可滑动地设置在两 第二卡槽 447内 ，以防止第二键盖 40脱离于前环壳体 44。 而本发明第二导柱 401、 第二滑动卡勾 403、 第二穿孔 445以及第二卡槽 447的数量及位置可不 局限于此实施例附图所绘示，端视实际需求而定。
如图 2至图 4所示，密封机构 34进一步包含有一密封构件 48 ,设置在前 环壳体 44与灯座壳体 46之间 ，密封构件 48包含有一密封本体 50以及一密封 墙体 52 ,密封墙体 52环设在密封本体 50。 实际应用上，密封墙体 52可用以 固设在灯座壳体 46 ,借此密封构件 48便可预先固定在灯座壳体 46上，以进行 后续组装。 在此实施例中 ，灯座壳体 46可具有一固定环结构 461。 在组装密封 构件 48与灯座壳体 46时，可将密封构件 48的密封墙体 52环绕灯座壳体 46 的固定环结构 461 ,以固设密封构件 48在灯座壳体 46上。而密封构件 48用来 固设在灯座壳体 46的结构设计可不局限此实施例附图所绘示，端视实际需求而 定。 在此实施例中 ， 密封构件 48 可由热塑性聚胺脂 (THERMOPLASTIC URETHANE, TPU)材质所制成，其耐油性高，且经紫外线照射后不易变色，但 本发明不受此限。
请参阅图 4至图 6 ,图 5为本发明实施例密封构件 48的示意图 ，图 6为本 发明实施例密封构件 48在另一视角的示意图。 如图 4至图 6所示，灯座壳体 46可进一步具有多个卡勾结构 463 ,且密封本体 50具有一第一表面 501及相 对第一表面 501的一第二表面 503。此外，密封构件 48进一步包含有一第一筋 条部 54以及一第二筋条部 56 ,第一筋条部 54设置在密封本体 50与密封墙体 52连接处且朝灯座壳体 46突伸，第二筋条部 56设置在密封本体 50与密封墙 体 52连接处且朝前环壳体 44突伸。
在将密封构件 48固设在灯座壳体 46上后，可进一步将灯座壳体 46组装在 前环壳体 44上，此时灯座壳体 46的卡勾结构 463可用以卡扣前环壳体 44 ,以 使灯座壳体 46的固定环结构 461下压密封构件 48的密封本体 50的周边在前 环壳体 44上。换句话说，当灯座壳体 46安装在前环壳体 44时，透过卡勾结构 463与前环壳体 44的卡扣作用 ，灯座壳体 46与前环壳体 44可分别推挤密封构 件 48的密封本体 50的周边，此时密封构件 48的密封本体 50与前环壳体 44 便可共同形成一密封空间 S，以密封按键基座 32上的所述第一开槽 321与第二 开槽 323。
这样一来，密封构件 48便可用来密封按键基座 32上的第一开槽 321与第 二开槽 323，以阻隔异物 (例如水、灰尘等)进入按键装置 30的按键基座 32内部， 以进一步防止异物进入按键基座 32内部而造成按键组件损坏。如图 4所示，当 密封本体 50与前环壳体 44共同形成密封空间 S时，密封本体 50的第一表面 501与第二表面 503分别用以抵接第一键盖 36与第一顶杆 38；密封本体 50的 第一表面 501与第二表面 503分别用以抵接第二键盖 40与第二顶杆 42。
也就是说，第一键盖 36与第一顶杆 38分别抵接在密封本体 50的第一表面 501与第二表面 503而彼此不接触，且第二键盖 40与第二顶杆 42分别抵接在 密封本体 50的第一表面 501与第二表面 503而彼此不接触， 因此密封本体 50 上无需设置孔洞供第一键盖 36与第一顶杆 38通过以及供第二键盖 40与第二顶 杆 42通过，借此上述设计便可进一步提升密封构件 48的密封效果。 此外，密 封本体 50的第二表面 503可与前环壳体 44共同定义密封空间 S , 由于第二表 面 503为一完整表面， 因此由第二表面 503可与前环壳体 44定义完整的密封 空间 S ,进而更进一步提升密封构件 48的密封效果。
除此之外，当灯座壳体 46与前环壳体 44分别推挤密封构件 48的密封本体 50的周边时，密封构件 48的第一筋条部 54与第二筋条部 56可分别被灯座壳 体 46与前环壳体 44挤压而变形，进而平贴在灯座壳体 46与前环壳体 44上。 也就是说，当灯座壳体 46与前环壳体 44分别推挤密封构件 48的密封本体 50 的周边时，密封构件 48的第一筋条部 54与第二筋条部 56可被灯座壳体 46与 前环壳体 44挤压而平贴在灯座壳体 46与前环壳体 44上，以进一步提升密封构 件 48的密封效果。
如图 4至图 6所示，密封构件 48进一步包含有一第一抵接部 58 ,且第一 键盖 36具有一第一触发部 365。第一抵接部 58设置在密封本体 50对应第一顶 杆 38处，第一抵接部 58的两侧突出于密封本体 50的第一表面 501与第二表 面 503。 当使用者按压第一键盖 36时，第一抵接部 58的两侧可用以分别抵接 第一键盖 36的第一触发部 365以及第一顶杆 38，以使第一键盖 36的第一触发 部 365透过第一抵接部 58驱动第一顶杆 38 ,以触发按键基座 32内的开关 (未 绘示在图中)。
值得一提的是， 由于第一抵接部 58的两侧突出于密封本体 50的第一表面 501与第二表面 503 ,即第一抵接部 58的厚度大于密封本体 50的厚度， 因此 第一抵接部 58相较于密封本体 50本身具有较大的机械强度，以防止密封构件 48在第一键盖 36与第一顶杆 38作动时破损。也就是说，本发明第一抵接部 58 具有较大厚度的结构设计可用以增加密封构件 48的使用寿命。 在此实施例中 ， 第一抵接部 58可为一平台结构，但本发明不受此限。
此外，由于密封构件 48的第一抵接部 58被第一键盖 36的第一触发部 365 以及第一顶杆 38所夹住， 因此在第一键盖 36的第一触发部 365透过第一抵接 部 58驱动第一顶杆 38以触发按键基座 32内的开关时，第一抵接部 58与第一 触发部 365以及第一抵接部 58与第一顶杆 38间的相对移动量小，故本发明第 一抵接部 58的结构设计可减少第一抵接部 58与第一触发部 365以及第一抵接 部 58与第一顶杆 38间的摩擦，进而进一步增加密封构件 48的使用寿命。经实 际测试后，本发明的密封构件 48可承受第一键盖 36对其 500万次以上之按压。 此外，密封构件 48进一步包含有一第二抵接部 60 ,且第二键盖 40具有一 第二触发部 405。第二抵接部 60设置在密封本体 50对应第二顶杆 42处，第二 抵接部 60的两侧突出于密封本体 50的第一表面 501与第二表面 503。 当使用 者按压第二键盖 40时，第二抵接部 60的两侧可用以分别抵接第二键盖 40的第 二触发部 405以及第二顶杆 42 ,以使第二键盖 40的第二触发部 405透过第二 抵接部 60驱动第二顶杆 42 ,以触发按键基座 32内的开关 (未绘示在图中)。
值得一提的是， 由于第二抵接部 60的两侧突出于密封本体 50的第一表面 501与第二表面 503 ,即第二抵接部 60的厚度大于密封本体 50的厚度， 因此 第二抵接部 60相较密封本体 50本身具有较大的机械强度，以防止密封构件 48 在第二键盖 40与第二顶杆 42作动时破损。 也就是说，本发明第二抵接部 60 具有较大厚度的结构设计可用以增加密封构件 48的使用寿命。 在此实施例中 ， 第二抵接部 60可为一平台结构，但本发明不受此限。
此外，由于密封构件 48的第二抵接部 60被第二键盖 40的第二触发部 405 以及第二顶杆 42所夹住， 因此在第二键盖 40的第二触发部 405透过第二抵接 部 60驱动第二顶杆 42以触发按键基座 32内的开关时，第二抵接部 60与第二 触发部 405以及第二抵接部 60与第二顶杆 42间的相对移动量小，故本发明第 二抵接部 60的结构设计可减少第二抵接部 60与第二触发部 405以及第二抵接 部 60与第二顶杆 42间的摩擦，进而进一步增加密封构件 48的使用寿命。经实 际测试后，本发明的密封构件 48可承受第二键盖 40对其 500万次以上之按压。
此外，密封构件 48的密封本体 50进一步具有一弹性连接部 505 ,连接第 一抵接部 58与第二抵接部 60 ,其可用以提供弹性，使第一抵接部 58与第二抵 接部 60作上下运动。 在此实施例中 ，弹性连接部 505的截面可为一 U字型结 构，但本发明弹性连接部 505的结构设计可不局限在此实施例附图所绘示。
相较于现有技术，本发明的密封机构利用前环壳体与灯座壳体在组装时分 别挤压密封构件的密封本体的周边，使密封本体与前环壳体共同形成密封空间 ， 以密封按键基座上的第一开槽与第二开槽。 这样一来，密封构件便可用来密封 按键基座上的第一开槽与第二开槽，以阻隔异物 (例如水、灰尘等)进入按键装置 的按键基座内部，以进一步防止异物进入按键基座内部而造成按键组件损坏。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明 ，对于本领 域的技术人员来说，本发明可以有各种更改和变化。 凡在本发明的精神和原则 之内 ，所作的任何修改、 等同替换、 改进等，均应包含在本发明的保护范围之

Claims

权 利 要 求 书
1. 一种适用在一按键装置的密封机构，所述按键装置包含有一按键基座， 其特征在于，所述密封机构包含有：
一前环壳体，安装在所述按键基座；
一灯座壳体，安装在所述前环壳体；以及
一密封构件，包含有：
一密封本体；以及
一密封墙体，环设在所述密封本体，用以固设在所述灯座壳体，所述灯座壳 体在安装在所述前环壳体时与所述前环壳体分别推挤所述密封本体的周边，使 所述密封本体与所述前环壳体共同形成一密封空间 ，以密封所述按键基座上的 一第一开槽。
2. 如权利要求 1 所述的密封机构，其特征在于，所述密封本体具有一第一 表面及相对所述第一表面之一第二表面，所述第一表面与所述第二表面分别用 以抵接所述按键装置的一第一键盖与一第一顶杆，且所述第二表面与所述前环 壳体共同定义所述密封空间。
3. 如权利要求 2所述的密封机构，其特征在于，所述密封构件进一步包含 有：
一第一抵接部，设置在所述密封本体对应所述第一顶杆处，所述第一抵接部 的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第一键盖与所 述第一顶杆。
4. 如权利要求 3所述的密封机构，其特征在于，所述第一抵接部的厚度大 于所述密封本体的厚度。
5. 如权利要求 4所述的密封机构，其特征在于，所述密封空间进一步用以 密封所述按键基座上的一第二开槽，且所述第一表面与所述第二表面进一步分 权 利 要 求 书
别用以抵接所述按键装置的一第二键盖与一第二顶杆，且所述密封构件进一步 包含有：
一第二抵接部，设置在所述密封本体对应所述第二顶杆处，所述第二抵接部 的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第二键盖与所 述第二顶杆。
6. 如权利要求 5所述的密封机构，其特征在于，所述密封本体进一步具有 一弹性连接部，连接所述第一抵接部与所述第二抵接部。
7. 如权利要求 1 所述的密封机构，其特征在于，所述密封构件进一步包含 有：
一第一筋条部，设置在所述密封本体与所述密封墙体连接处，所述第一筋条 部朝所述灯座壳体突伸。
8. 如权利要求 Ί所述的密封机构，其特征在于，所述密封构件进一步包含 有：
一第二筋条部，设置在所述密封本体与所述密封墙体连接处，所述第二筋条 部朝所述前环壳体突伸。
9. 如权利要求 1 所述的密封机构，其特征在于，所述灯座壳体具有一固定 环结构，且所述密封墙体环绕所述固定环结构。
10.如权利要求 9所述的密封机构，其特征在于，所述灯座壳体进一步具有 多个卡勾结构，用以卡扣所述前环壳体，以使所述固定环结构下压所述密封本 体的周边在所述前环壳体。
1 1 .一种按键装置，包含有：
一按键基座，形成有一第一开槽；以及
一密封机构，其特征在于，所述密封机构包含有： 权 利 要 求 书
一前环壳体，安装在所述按键基座；
一灯座壳体，安装在所述前环壳体；以及
一密封构件，包含有：
一密封本体；以及
一密封墙体，环设在所述密封本体，用以固设在所述灯座壳体，所述灯座壳 体在安装在所述前环壳体时与所述前环壳体分别推挤所述密封本体的周边，使 所述密封本体与所述前环壳体共同形成一密封空间 ，以密封所述按键基座上的 所述第一开槽。
12.如权利要求 11所述的按键装置，其特征在于，所述按键装置进一步包含 一第一键盖与一第一顶杆，所述第一键盖设置在所述灯座壳体上方，所述第一 顶杆可滑动地设置在所述第一开槽内且对应所述第一键盖，所述密封本体具有 一第一表面及相对所述第一表面之一第二表面，所述第一表面与所述第二表面 分别用以抵接所述第一键盖与所述第一顶杆，且所述第二表面与所述前环壳体 共同定义所述密封空间。
13.如权利要求 12所述的按键装置，其特征在于，所述密封构件进一步包含 有：
一第一抵接部，设置在所述密封本体对应所述第一顶杆处，所述第一抵接部 的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第一键盖与所 述第一顶杆。
14.如权利要求 13所述的按键装置，其特征在于，所述第一抵接部的厚度大 于所述密封本体的厚度。
15.如权利要求 14所述的按键装置，其特征在于，所述按键基座进一步形成 有一第二开槽，所述密封空间进一步用以密封所述按键基座上的所述第二开槽， 权 利 要 求 书
所述按键装置进一步包含一第二键盖与一第二顶杆，所述第二键盖设置在所述 灯座壳体上方且与所述第一键盖相邻，所述第二顶杆可滑动地设置在所述第二 开槽内且对应所述第二键盖，且所述第一表面与所述第二表面分别用以抵接所 述第二键盖与所述第二顶杆，且所述密封构件进一步包含有：
一第二抵接部，设置在所述密封本体对应所述第二顶杆处，所述第二抵接部 的两侧突出于所述第一表面与所述第二表面，用以分别抵接所述第二键盖与所 述第二顶杆。
16.如权利要求 15所述的按键装置，其特征在于，所述密封本体进一步具有 一弹性连接部，连接所述第一抵接部与所述第二抵接部。
17.如权利要求 11所述的按键装置，其特征在于，所述密封构件进一步包含 有：
一第一筋条部，设置在所述密封本体与所述密封墙体连接处，所述第一筋条 部朝所述灯座壳体突伸。
18.如权利要求 17所述的按键装置，其特征在于，所述密封构件进一步包含 有：
一第二筋条部，设置在所述密封本体与所述密封墙体连接处，所述第二筋条 部朝所述前环壳体突伸。
19.如权利要求 11所述的按键装置，其特征在于，所述灯座壳体具有一固定 环结构，且所述密封墙体环绕所述固定环结构。
20.如权利要求 19所述的按键装置，其特征在于，所述灯座壳体进一步具有 多个卡勾结构，用以卡扣所述前环壳体，以使所述固定环结构下压所述密封本 体的周边在所述前环壳体。
PCT/CN2014/070667 2014-01-15 2014-01-15 密封机构及按键装置 WO2015106411A1 (zh)

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