WO2022213500A1 - 一种改进的电能表 - Google Patents

一种改进的电能表 Download PDF

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Publication number
WO2022213500A1
WO2022213500A1 PCT/CN2021/104670 CN2021104670W WO2022213500A1 WO 2022213500 A1 WO2022213500 A1 WO 2022213500A1 CN 2021104670 W CN2021104670 W CN 2021104670W WO 2022213500 A1 WO2022213500 A1 WO 2022213500A1
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WO
WIPO (PCT)
Prior art keywords
button
electric energy
post
energy meter
column
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PCT/CN2021/104670
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English (en)
French (fr)
Inventor
张恒
唐健
林国庆
魏章波
Original Assignee
宁波三星医疗电气股份有限公司
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Application filed by 宁波三星医疗电气股份有限公司 filed Critical 宁波三星医疗电气股份有限公司
Priority to HU2300383A priority Critical patent/HUP2300383A1/hu
Publication of WO2022213500A1 publication Critical patent/WO2022213500A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/04—Housings; Supporting racks; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/24—Arrangements for avoiding or indicating fraudulent use

Definitions

  • the utility model relates to the technical field of electric energy meters, in particular to an improved electric energy meter.
  • the PCB board in the electric energy meter is provided with an elastic button
  • the end cover of the electric energy meter is provided with a push column
  • the end cover and the bottom shell of the electric energy meter are provided.
  • the purpose of the present invention is to provide an improved electric energy meter with an anti-electricity-stealing structure that can work normally even after long-term use.
  • an improved electric energy meter comprising a bottom case, a PCB board arranged in the bottom case, a meter cover and an end cover covered on the bottom case, the PCB board There is a button that can be reset after being pressed, and the inner wall of the end cover is provided with a push-up column that presses the button when the end cover is closed with the bottom case, and is separated from the button when the end cover is opened.
  • a connecting component is provided between the button and the ejector column to provide a reset force for the reset of the button when the end cover is opened.
  • connection assembly comprises a connection hole provided on the key and a connection post provided on the ejector post, or includes a connection hole provided on the ejector post and a connection post provided on the key;
  • the connecting column can be inserted into the connecting hole, and when the end cover is opened, the key is reset by the cooperation of the connecting column and the connecting hole, and then disengaged from the connecting hole.
  • the connecting post is in an interference fit with the connecting hole.
  • the connecting hole is provided with a limiting groove
  • the connecting column is provided with a limiting ring which can be clamped in the limiting groove
  • the free end of the connecting column is provided with a first chamfer for easy insertion into the connecting hole.
  • connection hole is provided with a second chamfer to facilitate the insertion of the connection post.
  • a plurality of reinforcing ribs extending along the length direction of the ejector column are arranged around the ejector column.
  • a reinforcing block is provided at the connection position of the reinforcing rib and the end cover.
  • the button includes a button cover, an elastic reset member disposed at the end of the button cover and close to one side of the PCB board, and a flexible reset member disposed on the elastic reset member communicates with the corresponding position on the PCB board when the elastic reset member is pressed.
  • the conductive sheet and the key post are arranged on the elastic reset piece and can be pushed up by the ejector post, and the connection post or the connection hole is arranged on the key post.
  • the conductive sheet is made of carbon diaphragm
  • the elastic reset member is made of silica gel.
  • the advantage of the present utility model is that: by adopting the structural design of the present application, under the action of the connecting assembly, when the cover is opened, the push-up post can exert a reset force on the button, so that the button can be reset. Even if the self-reset function fails, it can be reset normally under the reset force provided by the ejector column to ensure that the anti-theft function of the electric energy meter works normally, thereby ensuring the anti-electricity theft function of the electric energy meter.
  • FIG. 1 is a schematic diagram of the appearance structure of the electric energy meter of the present application.
  • FIG. 2 is a schematic diagram of the explosion structure of the electric energy meter of the application.
  • FIG. 3 is a schematic structural diagram of the end cover of the electric energy meter of the present application.
  • FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 .
  • FIG. 5 is an enlarged schematic view of the structure at B in FIG. 3 .
  • FIG. 6 is a schematic cross-sectional structural diagram of the button, the connecting component and the ejector column.
  • the improved electric energy meter includes a bottom case 1 , a PCB board 2 arranged in the bottom case 1 , and a cover closed on the bottom case 1 .
  • the watch cover 3 and the end cover 4 above, the PCB board 2 is provided with a button 5 that can be reset after being pressed, and the inner wall of the end cover 4 is provided with a button 5 when the end cover 4 is closed with the bottom case 1.
  • the ejector post 41 is disengaged from the button 5 .
  • the push post 41 pushes the button 5 so that the button 5 is pressed, and the corresponding module of the anti-stealing circuit arranged on the PCB board 2 is turned on, providing no electricity stealing event for the control module of the electric energy meter.
  • the normal working signal that occurs, when the end cover 4 is opened, under the action of the connecting component, a reset external force is provided for the button 5 to reset the button 5, that is, the button 5 is separated from the corresponding circuit on the PCB board, so that the corresponding module is not conductive.
  • the button 5 can be reset normally under the action of the reset force of the connecting component, so that the anti-theft function of the electric energy meter is effective for a long time.
  • connection component includes a connection hole 51 provided on the button 5 and a connection column 42 provided on the ejector column 41.
  • the connection component may also be a connection hole on the ejector column 41 and a connection hole provided on the button. (Because the difference between this arrangement and the previous structure is that the location of the connecting column and the connecting hole are changed, the other structures are the same, so this arrangement is not shown in the drawings).
  • the connecting column 42 can be inserted into the connecting hole 51, and when the end cover 4 is opened, the button 5 is reset by the cooperation of the connecting column 42 and the connecting hole 51, and then the connecting column 42 is disengaged from the connecting hole 51 .
  • connection post 42 and the connection hole 51 are connected by an interference fit.
  • the interference fit between the connection post 42 and the connection hole 51 will form a larger frictional force, and further The button 5 is driven to reset, and when the external force to open the end cap 4 is greater than the frictional force between the connecting post 42 and the connecting hole 51, the connecting post 42 is disengaged from the connecting hole 51, and the end cap 4 can be removed smoothly.
  • the connecting hole 51 is provided with a limiting groove 52
  • the connecting column 42 is provided with a limiting ring 43 that can be clamped in the limiting groove 52 .
  • the connecting column 42 is provided on the ejecting column 41, the connecting column 42 and the ejecting column 41 may be the same cylinder (as shown in the drawings), or they may be formed on the diameter of the end of the ejecting column 41.
  • the column body is smaller than the ejector column 41, or set in other forms.
  • the free end of the connecting column 42 is provided with a first chamfer 44 which is convenient to be inserted into the connecting hole 51 .
  • the outer end of the connecting hole 51 is provided with a second chamfer 53 .
  • a plurality of reinforcing ribs 45 extending along the length direction of the ejector column 41 are provided around the ejector column 41 .
  • a reinforcing block 46 is provided at the connection position of the reinforcing rib 45 and the end cover 4 .
  • the button 5 includes a button cover 54 , an elastic reset member 55 disposed at the end of the button cover 54 and close to the side of the PCB board 2 , and an elastic reset member 55 disposed on the elastic reset member 55 that is different when the elastic reset member 55 is pressed.
  • the conductive sheet 56 is made of a carbon diaphragm
  • the elastic reset member 55 is made of silica gel.
  • the elastic reset member 55 is a cone made of silicone material, and the diameter of one end close to the PCB board 2 is larger than the diameter of the end away from the PCB board 2 , and the conductive sheet 56 is arranged on the end of the elastic reset member 55 away from the PCB board 2 .
  • the elastic return member 55 can also use a return spring or the like.
  • the key cover 54 of the present application can also be made of silicone material.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Measuring Volume Flow (AREA)

Abstract

一种改进的电能表，包括底壳（1）、设置在底壳（1）中的PCB板（2）、盖合在底壳（1）上的表盖（3）和端盖（4），PCB板（2）上设置有按下后可复位的按键（5），端盖（4）内壁上设有在端盖（4）与底壳（1）盖合时将按键（5）按下而在端盖（4）打开时与按键（5）相脱离的推顶柱（41），按键（5）与推顶柱（41）之间设有在端盖（4）打开时为按键（5）的复位提供复位力的连接组件。

Description

一种改进的电能表 技术领域
本实用新型涉及电能表技术领域，尤其涉及一种改进的电能表。
背景技术
现有技术中的电能表防窃电功能大都采用如下结构实现，电能表内的PCB板上设有弹性按键，电能表的端盖上设有推顶柱，在端盖与电能表的底壳盖合时，推顶柱穿过电能表的上壳体将按键按下，以使电能表中的防窃电电路对应模块导通，为控制模块提供正常工作信号，端盖打开时推顶柱解除对按键的推顶作用，按键复位，防窃电电路的对应模块断开，为控制模块提供窃电信号，判断存在存在窃电。
但该结构存在一个问题，弹性按键在长时间使用后，容易出现无法复位的问题，也即当发生窃电事件，端盖被打开时电能表不能发出窃电信号，从而导致电能表防窃电功能失效。
发明内容
鉴于上述问题，本实用新型的目的在于提供一种即使在长时间使用后防窃电结构仍能正常工作的改进的电能表。
为了实现上述目的，本实用新型的技术方案为：一种改进的电能表，包括底壳、设置在底壳中的PCB板、盖合在底壳上的表盖和端盖，所述PCB板上设置有按下后可复位的按键，所述端盖内壁上设有在端盖与底壳盖合时将按键按下而在端盖打开时与按键相脱离的推顶柱，其特征在于：
所述按键与推顶柱之间设有在端盖打开时为按键的复位提供复位力的连接组件。
进一步的，所述连接组件包括设置在按键上的连接孔以及设置在推顶柱上的连接柱，或者包括设置在推顶柱上的连接孔以及设置在按键上的连接柱；
所述连接柱可插入连接孔中，并在端盖打开时通过连接柱与连接孔的配合作用带动按键复位，之后从连接孔中脱离。
进一步的，所述连接柱与连接孔过盈配合。
进一步的，所述连接孔中设有限位槽，所述连接柱上设有可卡设在限位槽中的限位环。
进一步的，所述连接柱的自由端设置有方便插入连接孔的第一倒角。
进一步的，所述连接孔的外端设有方便连接柱插入的第二倒角。
进一步的，所述推顶柱四周设有多个沿推顶柱长度方向延伸的加强筋。
进一步的，所述加强筋与端盖的连接位置处设置有加强块。
进一步的，所述按键包括按键套、设置在按键套端部且靠近PCB板一侧的弹性复位件、设置在弹性复位件上的在弹性复位件被按压时与PCB板上的对应位置相连通的导电片以及设置在弹性复位件上并可由推顶柱推顶的按键柱，所述连接柱或连接孔设置在按键柱上。
进一步的，所述导电片采用碳膜片制成，所述弹性复位件由硅胶制成。
与现有技术相比，本实用新型的优点在于：采用本申请的结构设计，在连接组件的作用下，能实现当打开表盖时，推顶柱会对按键施加一个复位作用力，使得按键即使在自身复位功能失效的状况下，也能在推顶柱提供的复位作用力下正常复位，确保电能表的防窃电功能正常工作，从而确保电能表的防窃电功能。
附图说明
图1为本申请的电能表外观结构示意图。
图2为本申请的电能表爆炸结构示意图。
图3为本申请的电能表端盖结构示意图。
图4为图2中A处放大结构示意图。
图5为图3中B处放大结构示意图。
图6为按键、连接组件及推顶柱的剖面结构示意图。
具体实施方式
下面详细描述本实用新型的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本实用新型，而不能理解为对本实用新型的限制。
如图1至6为本实用新型的优选实施例的结构示意图，如图所示，该种改进的电能表包括底壳1、设置在底壳1中的PCB板2、盖合在底壳1上的表盖3和的端盖4，PCB板2上设置有按下后可复位的按键5，端盖4内壁上设有在端盖4与底壳1盖合时将按键5按下而在端盖4打开时与按键5相脱离的推顶柱41，按键5与推顶柱41之间设有在端盖4打开时为按键5的复位提供复位力的连接组件。端盖4盖合时，推顶柱41推顶按键5使按键5被按下，布设在PCB板2上的防窃电电路的相应模块导通，为电能表的控制模块提供没有窃电事件发生的正常工作信号，当端盖4打开时，在连接组件的作用下，为按键5提供一个复位外力使按键5复位，也即按键5与PCB板上的对应电 路分离，使得对应模块不导通，在这种设计下，即使按键5自身的复位功能失效，按键5也能在连接组件的复位力作用下正常复位，从而使得电能表的防窃电功能长期有效。
具体而言，连接组件包括设置在按键5上的连接孔51以及设置在推顶柱41上的连接柱42，当然，连接组件也可以是在推顶柱41上的连接孔以及设置在按键上的连接柱(由于该种设置与前一结构的区别只是连接柱和连接孔换了位置，其他结构一样，故而附图中未示出该中设置方式)。但需要说明的是，不论以何种设置方式，连接柱42均可插入连接孔51中，并在端盖4打开时通过连接柱42与连接孔51的配合作用带动按键5复位，之后连接柱42从连接孔51中脱离。
作为一种优选实施例，连接柱42与连接孔51采用过盈配合的连接方式，在端盖4打开时，连接柱42与连接孔51间的过盈配合作用会形成较大摩擦力，进而带动按键5复位，而当打开端盖4的外力大于连接柱42与连接孔51间的摩擦力时，连接柱42与连接孔51脱离，端盖4可以顺利的被取下。
作为另一种优选实施例，连接孔51中设有限位槽52，连接柱42上设有可卡设在限位槽52中的限位环43。端盖4打开时，在限位环43与限位槽52的作用下，为按键5复位提供一个复位力，其原理与过盈配合相似，不在此赘述。
需要说明的是，如果推顶柱41上设置连接柱42时，连接柱42可以与推顶柱41为同一柱体(附图中所示)，也可以是成型在推顶柱41端部直径小于推顶柱41的柱体，或者设置为其它形式。
在本实施例中，连接柱42的自由端设置有方便插入连接孔51的第一倒角44。同时，为了进一步方便连接柱42插入连接孔51中，连接孔51的外端设有第二倒角53。
为了提高推顶柱41的稳定性，防止歪斜变形，推顶柱41四周设有多个沿推顶柱41长度方向延伸的加强筋45。作为一种优选，为了进一步提高推顶柱41的稳定性，加强筋45与端盖4的连接位置处设置有加强块46。
在本实施例中，按键5包括按键套54、设置在按键套54端部且靠近PCB板2一侧的弹性复位件55、设置在弹性复位件55上的在弹性复位件55被按压时与PCB板2上的对应位置相连通的导电片56以及设置在弹性复位件55上并可由推顶柱41推顶的按键柱57，按键5上的连接柱或连接孔51设置在按键柱57上，需要说明的是，如果按键柱57上设置连接柱时，连接柱可以与按键柱57为同一柱体，也可以是成型在按键柱57端部且直径小于按键柱57的柱体，或者设置为其它形式。
作为一种优选，导电片56采用碳膜片制成，弹性复位件55由硅胶制成。具体而言，弹性复位件55为由硅胶材料制成的锥型，并且靠近PCB板2的一端直径大于远离PCB板2一端的直径，导电片56设置在弹性复位件55远离PCB板2的一端。当然，弹性复位件55也可以采用复位弹簧等。本申请的按键套54也可以由硅胶材料制成。
尽管已经示出和描述了本实用新型的实施例，本领域技术人员可以理解：在不脱离 本实用新型的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变形，本实用新型的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种改进的电能表，包括底壳(1)、设置在底壳(1)中的PCB板(2)、盖合在底壳(1)上的表盖(3)和端盖(4)，所述PCB板(2)上设置有按下后可复位的按键(5)，所述端盖(4)内壁上设有在端盖(4)与底壳(1)盖合时将按键(5)按下而在端盖(4)打开时与按键(5)相脱离的推顶柱(41)，其特征在于：
    所述按键(5)与推顶柱(41)之间设有在端盖(4)打开时为按键(5)的复位提供复位力的连接组件。
  2. 根据权利要求1所述的改进的电能表，其特征在于：
    所述连接组件包括设置在按键(5)上的连接孔(51)以及设置在推顶柱(41)上的连接柱(42)或者包括设置在推顶柱(41)上的连接孔以及设置在按键上的连接柱；
    所述连接柱(42)可插入连接孔(51)中，并在端盖(4)打开时通过连接柱(42)与连接孔(51)的配合作用带动按键(5)复位，之后从连接孔(51)中脱离。
  3. 根据权利要求2所述的改进的电能表，其特征在于：
    所述连接柱(42)与连接孔(51)过盈配合。
  4. 根据权利要求2所述的改进的电能表，其特征在于：
    所述连接孔(51)中设有限位槽(52)，所述连接柱(42)上设有可卡设在限位槽(52)中的限位环(43)。
  5. 根据权利要求3或4任一权利要求所述的改进的电能表，其特征在于：
    所述连接柱(42)的自由端设置有方便插入连接孔(51)的第一倒角(44)。
  6. 根据权利要求5所述的改进的电能表，其特征在于：
    所述连接孔(51)的外端设有方便连接柱(42)插入的第二倒角(53)。
  7. 根据权利要求1所述的改进的电能表，其特征在于：
    所述推顶柱(41)四周设有多个沿推顶柱(41)长度方向延伸的加强筋(45)。
  8. 根据权利要求7所述的改进的电能表，其特征在于：
    所述加强筋(45)与端盖(4)的连接位置处设置有加强块(46)。
  9. 根据权利要求2所述的改进的电能表，其特征在于：
    所述按键(5)包括按键套(54)、设置在按键套(54)端部且靠近PCB板(2)一侧的弹性复位件(55)、设置在弹性复位件(55)上的在弹性复位件(55)被按压时与PCB板(2)上的对应位置相连通的导电片(56)以及设置在弹性复位件(55)上并可由推顶柱(41)推顶的按键柱(57)，所述连接柱或连接孔(51)设置在按键柱(57)上。
  10. 根据权利要求9所述的改进的电能表，其特征在于：
    所述导电片(56)采用碳膜片制成，所述弹性复位件(55)由硅胶制成。
PCT/CN2021/104670 2021-04-07 2021-07-06 一种改进的电能表 WO2022213500A1 (zh)

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CN2708322Y (zh) * 2004-04-02 2005-07-06 上海英孚特电子技术有限公司 开盖记录装置
JP2007193521A (ja) * 2006-01-18 2007-08-02 Nohmi Bosai Ltd 警報器
CN206832873U (zh) * 2017-06-26 2018-01-02 湖南威胜信息技术有限公司 一种用电信息采集终端
CN209199818U (zh) * 2019-01-21 2019-08-02 深圳东竔科技有限公司 一种电能表开盖检测按键结构
CN209673867U (zh) * 2018-11-05 2019-11-22 宁波三星智能电气有限公司 一种电能表

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2708322Y (zh) * 2004-04-02 2005-07-06 上海英孚特电子技术有限公司 开盖记录装置
JP2007193521A (ja) * 2006-01-18 2007-08-02 Nohmi Bosai Ltd 警報器
CN206832873U (zh) * 2017-06-26 2018-01-02 湖南威胜信息技术有限公司 一种用电信息采集终端
CN209673867U (zh) * 2018-11-05 2019-11-22 宁波三星智能电气有限公司 一种电能表
CN209199818U (zh) * 2019-01-21 2019-08-02 深圳东竔科技有限公司 一种电能表开盖检测按键结构

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