WO2022188478A1 - 一种电气设备 - Google Patents

一种电气设备 Download PDF

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Publication number
WO2022188478A1
WO2022188478A1 PCT/CN2021/135032 CN2021135032W WO2022188478A1 WO 2022188478 A1 WO2022188478 A1 WO 2022188478A1 CN 2021135032 W CN2021135032 W CN 2021135032W WO 2022188478 A1 WO2022188478 A1 WO 2022188478A1
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WO
WIPO (PCT)
Prior art keywords
box body
sealing member
box
groove
electrical equipment
Prior art date
Application number
PCT/CN2021/135032
Other languages
English (en)
French (fr)
Inventor
沈展良
李永红
鹿雨
Original Assignee
阳光电源股份有限公司
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 阳光电源股份有限公司 filed Critical 阳光电源股份有限公司
Priority to KR1020237026330A priority Critical patent/KR20230128347A/ko
Priority to AU2021432226A priority patent/AU2021432226A1/en
Priority to EP21929940.1A priority patent/EP4307851A1/en
Priority to US18/273,248 priority patent/US20240114669A1/en
Priority to JP2023547027A priority patent/JP2024505271A/ja
Publication of WO2022188478A1 publication Critical patent/WO2022188478A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/0015—Gaskets or seals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/92—Seal including electromagnetic shielding feature

Definitions

  • the present invention relates to the field of electrical technology, in particular to an electrical device.
  • the box of electrical equipment will be equipped with external devices such as reactors, radiators, connectors, terminals, etc.
  • a seal is provided between the device and the box, as shown in Figure 1 , The seal is generally placed in the device installation groove.
  • the seal is clamped between the base surface of the device and the box, so that there is a certain gap between the device and the box, resulting in the device and the box.
  • a bimodal seal is generally selected, one of which is used for conduction and the other is used for sealing.
  • the process of this kind of seal is complicated, and the first conductive peak needs to be equipped with conductive fillers, such as one or more of carbon, nickel, silver, etc., which is costly, and the conductive first peak has the risk of aging and brittle cracking after long-term use.
  • a foreign object may cause a short circuit to the electrical components inside the enclosure of the electrical equipment.
  • the purpose of the present invention is to provide an electrical equipment, the sealing element on the electrical equipment can ensure the electromagnetic shielding function between the box body and the device while ensuring the sealed installation of the box body and the device, the structure and process are simple, cost saving, It can also ensure the stable operation of electrical equipment.
  • An electrical device comprising:
  • a sealing member that takes into account both the electromagnetic shielding function and the sealing function is arranged between the box body and the device, and the base surface of the device can be attached to the installation surface of the box body.
  • one of the base surface of the device and the mounting surface of the box body is provided with an installation groove
  • the installation groove includes a first groove section and a second groove section connected in sequence from top to bottom,
  • the width of the first groove section is greater than the width of the second groove section
  • the sealing member is arranged in the second groove section, and the side of the sealing member facing away from the second groove section can be connected with the first groove section.
  • the upper surfaces of a slot segment are flush.
  • the sealing member is fixed in the second groove section by means of dispensing or adhesive bonding.
  • one of the base surface of the device and the mounting surface of the box is provided with a stepped surface, a groove is formed on the stepped surface, and the sealing member is arranged in the groove, so that the The sealing element can be laid on the step surface, so that the side of the sealing element facing away from the groove is flush with the base surface of the device or the mounting surface of the box.
  • the sealing member is fixed in the groove by means of dispensing or adhesive bonding.
  • one of the base surface of the device and the mounting surface of the box body is provided with a stepped surface, and the sealing member is arranged on the stepped surface or the base surface of the device and the box body At the position where the step surface is not opened in the installation surface of the casing and is directly opposite to the step surface, the sealing member can be laid on the step surface, and the two sides of the sealing member are respectively connected with the installation surface of the box body. It is attached to the base surface of the device.
  • the sealing member is fixed on the stepped surface by means of dispensing or adhesive bonding, or the stepped surface is not provided in the base surface of the device and the mounting surface of the box. And in the position facing the step surface.
  • both the box body and the device are conductors.
  • the mounting surface of the box body and the base surface of the device are in conductive contact.
  • the sealing member is a sealing tape.
  • the sealing member in the electrical equipment provided by the present invention, by arranging the sealing member between the box body and the device, the sealing member is squeezed under the fastening installation of the box body and the device, so that the base surface of the device can be fitted with the installation surface of the box body , so that the sealing element can ensure the electromagnetic shielding function of the conductive contact between the box body and the device while ensuring the sealed installation of the box body and the device.
  • the electrical equipment does not need to add additional conductive contact parts between the box and the device to ensure the electromagnetic shielding function of the conductive contact between the box and the device, thereby reducing the difficulty of the process. It saves costs and does not cause short-circuits to the electrical components inside the box, ensuring the stable operation of electrical equipment.
  • Fig. 1 is one of the structural representations of electrical equipment in the prior art
  • Fig. 2 is the second structural representation of electrical equipment in the prior art
  • FIG. 3 is a schematic structural diagram of the device not installed on the box in Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural diagram of a device mounted on a box in Embodiment 1 of the present invention.
  • Fig. 5 is the structural schematic diagram of the device not installed on the box body in the second embodiment of the present invention.
  • Fig. 6 is the structural schematic diagram of the device installed on the box in the second embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of the third embodiment of the present invention in which the device is not installed on the box;
  • Fig. 8 is the structural schematic diagram of the device installed on the box in the third embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of the device not mounted on the box in the fourth embodiment of the present invention.
  • connection should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • connection may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • specific meanings of the above terms in the present invention can be understood in specific situations.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • This embodiment provides an electrical device, and the electrical device mainly refers to an inverter, but is not limited to this, and may also be other electrical devices.
  • the electrical equipment mainly includes a box body 1, a device 2 and a sealing member 3, wherein the box body 1 plays a certain protective and supporting role for the internal electrical components, and the device 2 is an external device, which can be a reactor , radiator, connectors, terminals, etc., the device 2 is detachably fixed on the box body 1, and is electrically connected with the electrical components inside the box body 1, so as to realize the corresponding function of the device 2, and the sealing member 3 is arranged between the box body 1 and the box 1. between the devices 2 , thereby enhancing the installation sealing between the devices 2 and the box 1 .
  • the box body 1 plays a certain protective and supporting role for the internal electrical components
  • the device 2 is an external device, which can be a reactor , radiator, connectors, terminals, etc.
  • the device 2 is detachably fixed on the box body 1, and is electrically connected with the electrical components inside the box body 1, so as to realize the corresponding function of the device 2, and the sealing member 3 is arranged between the box body 1 and the box
  • the device 2 is provided with a first mounting hole
  • the box body 1 is provided with a second mounting hole
  • the fasteners pass through the first mounting hole and the second mounting hole in sequence to fix the device 2 on the box body 1 .
  • the fasteners can be screw connections, and the screw connections are detachable connections. When the device 2 fails or is damaged, it is convenient to disassemble the device 2 from the box 1 for maintenance, and replace the device 2 with a new one.
  • the screw connection has the advantages of strong reliability and stable installation.
  • the existing sealing member 3 is generally placed in the installation groove of the device 2. After the device 2 and the box body 1 are fastened and installed, the sealing member 3 is clamped between the base surface of the device 2 and the box body. 1, so that there is a certain gap between the device 2 and the box 1, so that the device 2 and the box 1 cannot effectively conduct conductive contact, so that the electromagnetic shielding function of the conductive contact cannot be realized.
  • the sealing member 3 generally uses a bimodal sealing member, one of which is used for electrical conduction,
  • the other peak is used for sealing, but the process of this kind of seal 3 is complicated, and the first conductive peak needs to be equipped with conductive fillers, such as one or more of carbon, nickel, silver, etc., and the cost is high, and the conductive first peak is aging after long-term use. Risk of brittle cracking, brittle foreign objects may cause a short circuit of the electrical components inside the box 1.
  • the sealing member 3 of the electrical equipment provided in this embodiment can take into account both the electromagnetic shielding function and the sealing function.
  • the sealing member 3 is arranged between the box body 1 and the device 2 .
  • the seal 3 is squeezed, so that the base surface of the device 2 can be attached to the installation surface of the box 1, so that the seal 3 can ensure the sealed installation of the box 1 and the device 2.
  • the electromagnetic shielding function of the conductive contact between the box body 1 and the device 2 can also be ensured.
  • both the box body 1 and the device 2 are conductors, so as to ensure the conductive contact between the box body 1 and the device 2, and to ensure the electromagnetic shielding function of conductive contact between the two.
  • the materials of the box 1 and the device 2 can be metal parts, such as sheet metal parts, die-casting parts, metal machining parts, etc., or non-metallic parts coated with a conductive coating, so as to ensure that the box 1 and the device are 2 are each capable of forming conductor cavities after contact.
  • the mounting surface of the box body 1 and the base surface of the device 2 are in conductive contact, as long as the limited contact portion between the box body 1 and the device 2 is in conductive contact.
  • a mounting groove 21 is formed on the base surface of the device 2 , and the mounting groove 21 is connected in sequence from top to bottom.
  • the first groove section 211 and the second groove section 212 the width of the first groove section 211 is greater than the width of the second groove section 212, the seal 3 is arranged in the second groove section 212, when the seal 3 is received by the device 2 and the box After the body 1 is fastened and installed, the sealing member 3 is squeezed, so that the side of the sealing member 3 facing away from the second groove section 212 can be flush with the upper surface of the first groove section 211, so as to ensure that the base surface of the device 2 and the box body 1 to fit the mounting surface.
  • a mounting groove 21 may also be opened on the mounting surface of the box body 1 .
  • the sealing member 3 can be a sealing rubber strip, and the deformation amount of the sealing rubber strip is relatively large, which is convenient to be laid on the first groove section 211 under the pressing action of the device 2 and the box body 1, so as to ensure that the sealing member 3 is away from the first groove section 211.
  • One side of the second groove section 212 can be flush with the upper surface of the first groove section 211 .
  • the sealing strip has the advantages of low cost, high reliability and good achievability.
  • the sealing tape can be fixed in the second groove section 212 by dispensing, which can prevent the sealing tape from falling off from the second groove section 212 and improve the stability of the sealing tape and the second groove section 212 being fixed.
  • the sealant strip may also be fixed in the second groove section 212 by means of adhesive backing.
  • the structure of the electrical equipment provided in this embodiment is basically the same as that of the first embodiment.
  • the difference between the electrical equipment provided in this embodiment and the first embodiment is that the installation form of the sealing member 3 is different.
  • a stepped surface 22 is formed on the base surface of the device 2, a groove 221 is formed on the stepped surface 22, and the sealing member 3 is arranged in the groove 221.
  • the sealing member 3 is squeezed, so that the sealing member 3 can be laid on the stepped surface 22, so that the side of the sealing member 3 facing away from the groove 221 is flush with the base surface of the device 2, so as to ensure that the device 2
  • the base surface of the box is in contact with the installation surface of the box body 1 .
  • a stepped surface 22 may also be provided on the installation surface of the box body 1.
  • the sealing member 3 When the sealing member 3 is fastened and installed by the device 2 and the box body 1, the sealing member 3 is squeezed.
  • the sealing member 3 can be laid on the stepped surface 22 , so that the side of the sealing member 3 facing away from the groove 221 is flush with the mounting surface of the box body 1 .
  • the sealing member 3 can be fixed in the groove 221 by dispensing glue, which can prevent the sealing member 3 from falling off from the groove 221 and improve the stability of the fixing of the sealing member 3 and the groove 221 .
  • the sealing member 3 may also be fixed in the groove 221 by means of adhesive-backed fixing.
  • the structure of the electrical equipment provided in this embodiment is basically the same as that of the first embodiment.
  • the difference between the electrical equipment provided in this embodiment and the first embodiment is that the installation form of the sealing member 3 is different.
  • the base surface of the device 2 is provided with a stepped surface 22, and the sealing member 3 is arranged on the stepped surface 22.
  • the sealing member 3 When the sealing member 3 is fastened and installed by the device 2 and the box 1, the sealing member 3 It is squeezed so that the sealing member 3 can be laid on the stepped surface 22, so that the side of the sealing member 3 facing away from the stepped surface 22 is flush with the base surface of the device 2, so as to ensure that the base surface of the device 2 and the installation surface of the box 1 are in line with each other. fit.
  • a stepped surface 22 may also be provided on the installation surface of the box body 1.
  • the sealing member 3 When the sealing member 3 is fastened and installed by the device 2 and the box body 1, the sealing member 3 is squeezed.
  • the sealing member 3 can be laid on the stepped surface 22 , so that the side of the sealing member 3 facing away from the stepped surface 22 is flush with the installation surface of the box body 1 .
  • the sealing member 3 can be fixed on the stepped surface 22 by dispensing glue, which can prevent the sealing member 3 from falling off from the stepped surface 22 and improve the stability of the fixing of the sealing member 3 and the stepped surface 22 .
  • the sealing member 3 may also be fixed on the stepped surface 22 by means of adhesive bonding.
  • the structure of the electrical equipment provided in this embodiment is basically the same as that of the third embodiment.
  • the difference between the electrical equipment provided in this embodiment and the third embodiment is that the installation position of the sealing member 3 is different.
  • the base surface of the device 2 is provided with a stepped surface 22
  • the sealing member 3 is arranged on the box body 1
  • the sealing member 3 and the stepped surface 22 are arranged directly opposite. 1
  • the sealing member 3 is squeezed, so that the sealing member 3 can be laid on the stepped surface 22, and the two sides of the sealing member 3 are respectively attached to the mounting surface of the box 1 and the base surface of the device 2, so as to ensure that the device 2
  • the base surface of the box is in contact with the installation surface of the box body 1 .
  • a stepped surface 22 may also be provided on the mounting surface of the box body 1
  • the sealing member 3 is disposed on the device 2
  • the sealing member 3 is disposed opposite the stepped surface 22 .
  • the sealing member 3 can be fixed on the box body 1 by dispensing glue, which can prevent the sealing member 3 from falling off from the box body 1 and improve the stability of the fixing of the sealing member 3 and the box body 1 .
  • the sealing member 3 may also be fixed on the box body 1 by means of adhesive-backed fixing.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

本发明涉及电气技术领域，尤其涉及一种电气设备。本发明提供的电气设备包括箱体、器件以及兼顾电磁屏蔽功能和密封功能的密封件，其中，器件可拆卸固定在箱体上，密封件设置在箱体与器件之间，器件的基面能够与箱体的安装面相贴合，使得密封件在保证箱体与器件密封安装的同时，也能够使得器件的基面与箱体安装面的紧密贴合，保证箱体与器件之间导电接触的电磁屏蔽功能。该电气设备在使用密封件保证密封性的情况下，不用在箱体与器件之间额外增加导电接触零部件，来保证箱体与器件之间导电接触的电磁屏蔽功能，从而降低了工艺难度，节省成本，也不会对箱体内部造成短路现象，保证电气设备的稳定工作。

Description

一种电气设备
本申请要求于2021年03月10日提交中国专利局、申请号为202120507224.7、发明名称为“一种电气设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电气技术领域，尤其涉及一种电气设备。
背景技术
一般电气设备的箱体上会装有电抗器、散热器、连接器、端子等外装器件，为保证电气设备箱体的密封性，器件与箱体之间设置有密封件，如图1所示，密封件一般是放置在器件安装槽内，当器件与箱体紧固安装后，密封件夹在器件的基面与箱体之间，使得器件与箱体具有一定的间隙，致使器件和箱体之间不能有效接触，从而无法实现导电接触的电磁屏蔽功能。随着技术的发展，为了实现器件与箱体之间兼具密封和导电接触的电磁屏蔽功能，如图2所示，一般会选用双峰密封件，其中一峰用于导电，另一峰用于密封，但是此种密封件工艺复杂，导电的一峰需要配有导电填充物，如碳、镍、银等一种或多种，成本高，而且导电的一峰经过长期使用有老化脆裂风险，脆裂的异物可能会导致电气设备的箱体内部的电气元件短路。
发明内容
本发明的目的在于提供一种电气设备，电气设备上的密封件在保证箱体与器件密封安装的同时，也能够保证箱体与器件之间的电磁屏蔽功能，该结构工艺简单，节省成本，也能保证电气设备的稳定工作。
为达此目的，本发明采用以下技术方案：
一种电气设备，包括：
箱体；
器件，可拆卸固定在所述箱体上；以及
兼顾电磁屏蔽功能和密封功能的密封件，设置在所述箱体与所述器件之间，所述器件的基面能够与所述箱体的安装面相贴合。
作为优选方案，所述器件的基面与所述箱体的安装面中的一个上开设有安装槽，所述安装槽包括由上至下依次相连接的第一槽段以及第二槽段，所述第一槽段的宽度大于所述第二槽段的宽度，所述密封件设置在所述第二槽段内，所述密封件背离所述第二槽段的一面能够与所述第一槽段的上表面相齐平。
作为优选方案，所述密封件通过点胶方式或背胶粘结固定的方式固定在所述第二槽段内。
作为优选方案，所述器件的基面与所述箱体的安装面中的一个上开设有台阶面，所述台阶面上开设有凹槽，所述密封件设置在所述凹槽中，所述密封件能够铺在所述台阶面上，以使所述密封件背离所述凹槽的一面与所述器件的基面或所述箱体的安装面相齐平。
作为优选方案，所述密封件通过点胶方式或背胶粘结固定的方式固定在所述凹槽内。
作为优选方案，所述器件的基面与所述箱体的安装面中的一个上开设有台阶面，所述密封件设置在所述台阶面上或所述器件的基面与所述箱体的安装面中未开设有所述台阶面并且与所述台阶面正对的位置上，所述密封件能够铺在所述台阶面上，所述密封件两面分别与所述箱体的安装面和所述器件的基面相 贴合。
作为优选方案，所述密封件通过点胶方式或背胶粘结固定的方式固定在所述台阶面上或所述器件的基面与所述箱体的安装面中未开设有所述台阶面并且与所述台阶面正对的位置上。
作为优选方案，所述箱体和所述器件均为导体。
作为优选方案，所述箱体的安装面和所述器件的基面为导电接触。
作为优选方案，所述密封件为密封胶条。
本发明的有益效果：
本发明提供的电气设备，通过将密封件设置在箱体与器件之间，密封件在箱体与器件的紧固安装下受到挤压，使得器件的基面能够与箱体的安装面相贴合，使得密封件在保证箱体与器件密封安装的同时，也能够保证箱体与器件之间导电接触的电磁屏蔽功能。该电气设备在使用密封件保证密封性的情况下，不用在箱体与器件之间额外增加导电接触零部件，来保证箱体与器件之间导电接触的电磁屏蔽功能，从而降低了工艺难度，节省成本，也不会对箱体内部的电气元件造成短路现象，保证电气设备的稳定工作。
附图说明
图1是现有技术中电气设备的结构示意图之一；
图2是现有技术中电气设备的结构示意图之二；
图3是本发明实施例一中器件未安装在箱体上的结构示意图；
图4是本发明实施例一中器件安装在箱体上的结构示意图；
图5是本发明实施例二中器件未安装在箱体上的结构示意图；
图6是本发明实施例二中器件安装在箱体上的结构示意图；
图7是本发明实施例三中器件未安装在箱体上的结构示意图；
图8是本发明实施例三中器件安装在箱体上的结构示意图；
图9是本发明实施例四中器件未安装在箱体上的结构示意图。
图中：
1、箱体；
2、器件；21、安装槽；211、第一槽段；212、第二槽段；22、台阶面；221、凹槽；
3、密封件。
具体实施方式
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
在本发明的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方” 和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“左”、“右”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
实施例一
本实施例提供了一种电气设备，该电气设备主要是指逆变器，但不限于此，还可以是其他电气设备。
如图3所示，该电气设备主要包括箱体1、器件2以及密封件3，其中，箱体1对内部的电气元件起到一定的保护支撑作用，器件2为外装器件，可以为电抗器、散热器、连接器、端子等，器件2可拆卸固定在箱体1上，并与箱体1内部的电气元件电连接，从而实现器件2相应的功能，密封件3设置在箱体1与器件2之间，从而增强器件2与箱体1之间的安装密封性。具体而言，器件2上开设有第一安装孔，箱体1上开设有第二安装孔，紧固件依次穿过第一安装孔以及第二安装孔将器件2固定在箱体1上。需要说明的是，紧固件可以为螺钉连接，螺钉连接为可拆卸连接，当器件2发生故障或损坏时，便于将器件2从箱体1上拆卸下来进行维修，更换上新的器件2。此外，螺钉连接具有可靠性强，安装稳固的优点。
但是，如图1所示，现有的密封件3一般都是放置在器件2安装槽内，当器件2与箱体1紧固安装后，密封件3夹在器件2的基面与箱体1之间，使得 器件2与箱体1之间具有一定的间隙，致使器件2和箱体1之间不能有效地进行导电接触，从而无法实现导电接触的电磁屏蔽功能。
随着技术的发展，为了保证器件2与箱体1之间兼具密封和导电接触的电磁屏蔽功能，如图2所示，密封件3一般会选用双峰密封件，其中一峰用于导电，另一峰用于密封，但是此种密封件3工艺复杂，导电的一峰需要配有导电填充物，如碳、镍、银等一种或多种，成本高，而且导电的一峰经过长期使用有老化脆裂风险，脆裂的异物可能会导致箱体1内部的电气元件短路。
为了解决上述问题，如图3～图4所示，本实施例提供的电气设备的密封件3能够兼顾电磁屏蔽功能和密封功能，该密封件3设置在箱体1与器件2之间，当器件2与箱体1紧固安装后，密封件3受到挤压，使得器件2的基面能够与箱体1的安装面相贴合，使得密封件3在保证箱体1与器件2密封安装的同时，也能够保证箱体1与器件2之间导电接触的电磁屏蔽功能。该电气设备在使用密封件3保证密封性的情况下，无需在箱体1与器件2之间额外增加导电接触零部件，来保证箱体1与器件2之间导电接触的电磁屏蔽功能，从而降低了工艺难度，节省成本，也不会对箱体1内部的电气元件造成短路现象，保证电气设备的稳定工作。
在本实施例中，箱体1和器件2均为导体，从而保证实现箱体1和器件2进行导电接触，保证两者之间产生导电接触的电磁屏蔽功能。具体而言，箱体1和器件2的材料可以是金属件，如钣金件、压铸件、金属机加工件等，也可以是非金属件表面涂覆导电涂层，从而保证箱体1与器件2接触后各自均能够形成导体空腔。
需要说明的是，在其他实施例中，箱体1的安装面和器件2的基面为导电 接触，只要能够保证箱体1与器件2的有限接触部分为导电接触即可。
现结合图3～图4对密封件3的具体放置形式进行说明，如图2～图3所示，器件2的基面上开设有安装槽21，安装槽21包括由上至下依次相连接的第一槽段211以及第二槽段212，第一槽段211的宽度大于第二槽段212的宽度，密封件3设置在第二槽段212内，当密封件3受到器件2与箱体1紧固安装后，密封件3受到挤压，使得密封件3背离第二槽段212的一面能够与第一槽段211的上表面相齐平，从而保证器件2的基面与箱体1的安装面相贴合。需要说明的是，在其他实施例中，还可以在箱体1的安装面中上开设有安装槽21。
优选地，密封件3可以为密封胶条，密封胶条的变形量比较大，便于在器件2与箱体1的挤压作用下，铺在第一槽段211上，保证密封件3背离第二槽段212的一面能够与第一槽段211的上表面相齐平。此外，密封胶条具有成本低、可靠性高以及可实现性好的优点。
优选地，密封胶条可以通过点胶方式固定在第二槽段212内，可以避免密封胶条从第二槽段212内脱落下来，提高密封胶条与第二槽段212固定的稳定性。在其他实施例中，密封胶条还可以通过背胶粘结固定的方式固定在第二槽段212内。
实施例二
本实施例提供的电气设备的结构与实施例一基本相同，本实施例提供的电气设备与实施例一的不同之处在于：密封件3的安装形式不同。
如图5～图6所示，器件2的基面上开设有台阶面22，台阶面22上开设有凹槽221，密封件3设置在凹槽221中，当密封件3受到器件2与箱体1紧 固安装后，密封件3受到挤压，使得密封件3能够铺在台阶面22上，以使密封件3背离凹槽221的一面与器件2的基面相齐平，从而保证器件2的基面与箱体1的安装面相贴合。需要说明的是，在其他实施例中，还可以在箱体1的安装面上开设有台阶面22，当密封件3受到器件2与箱体1紧固安装后，密封件3受到挤压，使得密封件3能够铺在台阶面22上，以使密封件3背离凹槽221的一面与箱体1的安装面相齐平。
优选地，密封件3可以通过点胶方式固定在凹槽221内，可以避免密封件3从凹槽221内脱落下来，提高密封件3与凹槽221固定的稳定性。在其他实施例中，密封件3还可以通过背胶粘结固定的方式固定在凹槽221内。
实施例三
本实施例提供的电气设备的结构与实施例一基本相同，本实施例提供的电气设备与实施例一的不同之处在于：密封件3的安装形式不同。
如图7～图8所示，器件2的基面上开设有台阶面22，密封件3设置在台阶面22上，当密封件3受到器件2与箱体1紧固安装后，密封件3受到挤压，使得密封件3能够铺在台阶面22上，以使密封件3背离台阶面22的一面与器件2的基面相齐平，从而保证器件2的基面与箱体1的安装面相贴合。需要说明的是，在其他实施例中，还可以在箱体1的安装面上开设有台阶面22，当密封件3受到器件2与箱体1紧固安装后，密封件3受到挤压，使得密封件3能够铺在台阶面22上，以使密封件3背离台阶面22的一面与箱体1的安装面相齐平。
优选地，密封件3可以通过点胶方式固定在台阶面22上，可以避免密封件3从台阶面22上脱落下来，提高密封件3与台阶面22固定的稳定性。在其 他实施例中，密封件3还可以通过背胶粘结固定的方式固定在台阶面22上。
实施例四
本实施例提供的电气设备的结构与实施例三基本相同，本实施例提供的电气设备与实施例三的不同之处在于：密封件3的安装位置不同。
如图9所示，器件2的基面上开设有台阶面22，密封件3设置在箱体1上，并且密封件3与台阶面22正对设置，当密封件3受到器件2与箱体1紧固安装后，密封件3受到挤压，使得密封件3能够铺在台阶面22上，密封件3两面分别与箱体1的安装面和器件2的基面相贴合，从而保证器件2的基面与箱体1的安装面相贴合。需要说明的是，在其他实施例中，还可以在箱体1的安装面上开设有台阶面22，密封件3设置在器件2上，并且密封件3与台阶面22正对设置。
优选地，密封件3可以通过点胶方式固定在箱体1上，可以避免密封件3从箱体1上脱落下来，提高密封件3与箱体1固定的稳定性。在其他实施例中，密封件3还可以通过背胶粘结固定的方式固定在箱体1上。
显然，本发明的上述实施例仅仅是为了清楚说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种电气设备，其特征在于，包括：
    箱体(1)；
    器件(2)，可拆卸固定在所述箱体(1)上；以及
    兼顾电磁屏蔽功能和密封功能的密封件(3)，设置在所述箱体(1)与所述器件(2)之间，所述器件(2)的基面能够与所述箱体(1)的安装面相贴合。
  2. 根据权利要求1所述的电气设备，其特征在于，所述器件(2)的基面与所述箱体(1)的安装面中的一个上开设有安装槽(21)，所述安装槽(21)包括由上至下依次相连接的第一槽段(211)以及第二槽段(212)，所述第一槽段(211)的宽度大于所述第二槽段(212)的宽度，所述密封件(3)设置在所述第二槽段(212)内，所述密封件(3)背离所述第二槽段(212)的一面能够与所述第一槽段(211)的上表面相齐平。
  3. 根据权利要求2所述的电气设备，其特征在于，所述密封件(3)通过点胶方式或背胶粘结固定的方式固定在所述第二槽段(212)内。
  4. 根据权利要求1所述的电气设备，其特征在于，所述器件(2)的基面与所述箱体(1)的安装面中的一个上开设有台阶面(22)，所述台阶面(22)上开设有凹槽(221)，所述密封件(3)设置在所述凹槽(221)中，所述密封件(3)能够铺在所述台阶面(22)上，以使所述密封件(3)背离所述凹槽(221)的一面与所述器件(2)的基面或所述箱体(1)的安装面相齐平。
  5. 根据权利要求4所述的电气设备，其特征在于，所述密封件(3)通过 点胶方式或背胶粘结固定的方式固定在所述凹槽(221)内。
  6. 根据权利要求1所述的电气设备，其特征在于，所述器件(2)的基面与所述箱体(1)的安装面中的一个上开设有台阶面(22)，所述密封件(3)设置在所述台阶面(22)上或所述器件(2)的基面与所述箱体(1)的安装面中未开设有所述台阶面(22)并且与所述台阶面(22)正对的位置上，所述密封件(3)能够铺在所述台阶面(22)上，所述密封件(3)两面分别与所述箱体(1)的安装面和所述器件(2)的基面相贴合。
  7. 根据权利要求6所述的电气设备，其特征在于，所述密封件(3)通过点胶方式或背胶粘结固定的方式固定在所述台阶面(22)上或所述器件(2)的基面与所述箱体(1)的安装面中未开设有所述台阶面(22)并且与所述台阶面(22)正对的位置上。
  8. 根据权利要求1～7任一项所述的电气设备，其特征在于，所述箱体(1)和所述器件(2)均为导体。
  9. 根据权利要求1～7任一项所述的电气设备，其特征在于，所述箱体(1)的安装面和所述器件(2)的基面为导电接触。
  10. 根据权利要求1～7任一项所述的电气设备，其特征在于，所述密封件(3)为密封胶条。
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