CN113966163A - A method for designing the electromagnetic compatibility structure of a medical device host - Google Patents
A method for designing the electromagnetic compatibility structure of a medical device host Download PDFInfo
- Publication number
- CN113966163A CN113966163A CN202110654464.4A CN202110654464A CN113966163A CN 113966163 A CN113966163 A CN 113966163A CN 202110654464 A CN202110654464 A CN 202110654464A CN 113966163 A CN113966163 A CN 113966163A
- Authority
- CN
- China
- Prior art keywords
- shell
- electromagnetic compatibility
- inner shielding
- shielding shell
- electromagnetic
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H05K9/0049—Casings being metallic containers
-
- 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
- H05K9/005—Casings being nesting containers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
一种医疗器械主机电磁兼容结构设计方法，该结构设计主要由外壳和内屏蔽壳构成，简称壳中壳。所述外壳可以是金属材料或非金属材料，当外壳采用金属材料等良导体时须与内屏蔽壳绝缘；内屏蔽壳由镀锌钢板或铝板金属材料，内屏蔽壳接保护地；当解决严重的电磁兼容问题时，内屏蔽壳可喷涂、贴敷电磁辐射吸收材料。An electromagnetic compatibility structure design method of a medical device host, the structure design is mainly composed of an outer shell and an inner shielding shell, which is referred to as a shell-in-shell. The outer shell can be made of metal or non-metallic materials. When the outer shell is made of good conductors such as metal materials, it must be insulated from the inner shielding shell; the inner shielding shell is made of galvanized steel sheet or aluminum plate metal material, and the inner shielding shell is connected to the protective ground; When there is no electromagnetic compatibility problem, the inner shielding shell can be sprayed and pasted with electromagnetic radiation absorbing materials.
Description
Technical Field
The invention particularly relates to a design method of an electromagnetic compatibility structure of a medical instrument host.
Background
Medical devices must be designed for electromagnetic compatibility in order to meet the requirements of legal and related standards. Electromagnetic compatibility emc (electromagnetic compatibility): refers to the ability of a device or system to function properly in its electromagnetic environment without creating unacceptable electromagnetic disturbance to anything in the environment. On one hand, the electromagnetic interference generated to the environment of the equipment cannot exceed a certain limit value in the normal operation process; another aspect is that the appliance has a degree of immunity to electromagnetic interference present in the environment, i.e., electromagnetic susceptibility. In order to improve the safety and effectiveness of medical equipment and prevent medical equipment from being out of control and invalid to hurt patients and users due to electromagnetic interference or electromagnetic disturbance in use, the electromagnetic compatibility of the equipment or system is designed.
The shell of the existing medical apparatus or equipment host is generally in a metal or nonmetal type, and when the shell is made of metal materials, the shell is protected and grounded, and electric appliance component devices and the like are arranged in the shell.
The power input application environment of the medical institution is mostly a multi-hole socket of a wiring board, and the phenomenon of poor grounding protection is more.
The above design of the medical apparatus or device housing has the following defects:
(1) the shell protects the ground, the electric shock risk of the human body occurs when the single fault, namely the protection grounding plug, is in poor contact; (2) the test of the electromagnetic compatibility standard is difficult to pass; easily radiate or emit beyond standard, etc.
Disclosure of Invention
The invention aims to provide a design method of an electromagnetic compatibility structure of a medical instrument host.
The method is based on the design of a host machine shell and an inner shielding shell, which is called a shell-in-shell for short.
The shell of the method can be made of metal materials or nonmetal materials, and is insulated from the inner shielding shell when the shell is made of good conductors such as metal materials; the inner shielding shell is made of galvanized steel sheets or multi-core metal plates including but not limited to iron, copper, aluminum and the like, and is connected with a protective ground; when solving the serious electromagnetic compatibility problem, the inner shielding shell can be additionally coated and pasted with an electromagnetic radiation absorbing material.
The principle is as follows: the inner shielding shell is connected with a protective ground and is insulated from the shell; the inner shielding shell is made of galvanized steel plates including but not limited to iron, copper, aluminum and other multi-core metal plates, so that the radiation of a space and the emission of a host electronic device are effectively prevented; the inner shielding shell can be added with electromagnetic radiation absorbing materials for spraying and pasting, and the serious electromagnetic compatibility problem is solved.
The invention is mainly characterized in that: (1) the inner shielding shell is connected with a protective ground and is insulated from the outer shell, so that when a single fault, namely poor contact of a protective grounding plug, the personal electric shock risk can be still prevented; (2) the electromagnetic compatibility problem of medical instruments is effectively solved; (3) the inner shielding shell can be added with electromagnetic radiation absorbing materials for spraying and pasting, and the more serious electromagnetic compatibility problem can be solved.
Drawings
Fig. 1 is an overall schematic diagram of a design method of an electromagnetic compatibility structure of a medical instrument host.
Reference numerals: 1. a host housing; 2. inner shield shell (with protection ground).
Detailed Description
The invention discloses a design method of an electromagnetic compatibility structure of a medical instrument host, and a person skilled in the art can appropriately improve process parameters by referring to the content. It is specifically intended that all such alterations and modifications that are obvious to those skilled in the art are deemed to be incorporated herein by reference, and that the techniques of the invention may be practiced and applied by those skilled in the art without departing from the spirit, scope and spirit of the invention, mutatis mutandis and combination as described herein.
Fig. 1 is an overall schematic diagram of a design method of an electromagnetic compatibility structure of a medical instrument host.
Referring to fig. 1, the design method for the electromagnetic compatibility structure of the medical instrument host disclosed by the invention comprises a host shell 1 and an inner shielding shell 2.
Wherein the outer shell 1 is made of a metal material or a non-metal material, and is insulated from the inner shield shell when the outer shell is made of a metal material.
The inner shielding shell 2 is made of galvanized steel sheet or a multi-core metal plate material including but not limited to iron, copper, aluminum and the like, and is connected with a protective ground; when solving the serious electromagnetic compatibility problem, the inner shielding shell can be additionally coated and pasted with an electromagnetic radiation absorbing material.
In the present invention, unless otherwise specified, scientific and technical terms used herein have the meanings that are commonly understood by those skilled in the art.
Claims (6)
1. A structure of medical instrument host machine electromagnetic compatibility is mainly composed of an outer shell and an inner shielding shell.
2. The structure of claim 1, wherein the outer shell is made of a good conductor such as metal material and is insulated from the inner shield shell.
3. The electromagnetic compatibility structure of medical device host of claim 1, wherein the inner shielding shell is made of galvanized steel or a multi-core metal plate material including but not limited to iron, copper, aluminum, etc.
4. The medical device host electromagnetic compatibility structure of claim 1, the inner shielding shell being connected to a protective ground.
5. The structure of claim 1, wherein the inner shielding shell is coated with an electromagnetic radiation absorbing material on the inside or outside thereof when solving a serious problem of electromagnetic compatibility.
6. The structure of claim 1, wherein the inner shielding shell is coated with an electromagnetic radiation absorbing material when solving a serious problem of electromagnetic compatibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110654464.4A CN113966163A (en) | 2021-06-11 | 2021-06-11 | A method for designing the electromagnetic compatibility structure of a medical device host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110654464.4A CN113966163A (en) | 2021-06-11 | 2021-06-11 | A method for designing the electromagnetic compatibility structure of a medical device host |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113966163A true CN113966163A (en) | 2022-01-21 |
Family
ID=79460369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110654464.4A Pending CN113966163A (en) | 2021-06-11 | 2021-06-11 | A method for designing the electromagnetic compatibility structure of a medical device host |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113966163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404730A (en) * | 2023-04-14 | 2023-07-07 | 河南翔宇医疗设备股份有限公司 | Method for eliminating electromagnetic radiation of medical instrument charging device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345399A (en) * | 2004-06-07 | 2005-12-15 | Yoshinori Seki | Screen factor measuring method using small broadband high frequency signal source |
| CN202372191U (en) * | 2011-11-11 | 2012-08-08 | 南通正拓气体有限公司 | Anti-electromagnetic interference instrument box |
| CN104363745A (en) * | 2014-12-09 | 2015-02-18 | 成都国蓉科技有限公司 | Electro magnetic compatibility shielding box |
| CN109480899A (en) * | 2018-10-29 | 2019-03-19 | 北京航天控制仪器研究所 | A kind of airborne Portable color diagnostic equipment |
| CN109715228A (en) * | 2016-09-29 | 2019-05-03 | 史密夫及内修公开有限公司 | Protection to the electronic device in negative pressure wound treating system |
-
2021
- 2021-06-11 CN CN202110654464.4A patent/CN113966163A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345399A (en) * | 2004-06-07 | 2005-12-15 | Yoshinori Seki | Screen factor measuring method using small broadband high frequency signal source |
| CN202372191U (en) * | 2011-11-11 | 2012-08-08 | 南通正拓气体有限公司 | Anti-electromagnetic interference instrument box |
| CN104363745A (en) * | 2014-12-09 | 2015-02-18 | 成都国蓉科技有限公司 | Electro magnetic compatibility shielding box |
| CN109715228A (en) * | 2016-09-29 | 2019-05-03 | 史密夫及内修公开有限公司 | Protection to the electronic device in negative pressure wound treating system |
| CN109480899A (en) * | 2018-10-29 | 2019-03-19 | 北京航天控制仪器研究所 | A kind of airborne Portable color diagnostic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404730A (en) * | 2023-04-14 | 2023-07-07 | 河南翔宇医疗设备股份有限公司 | Method for eliminating electromagnetic radiation of medical instrument charging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5649102B2 (en) | Microwave shielding device | |
| TW200822482A (en) | Shielded frame | |
| CN113966163A (en) | A method for designing the electromagnetic compatibility structure of a medical device host | |
| CN204408844U (en) | The electromagnetic screen of light-emitting device | |
| CN207282919U (en) | A kind of power switch cabinet shell | |
| CN215499265U (en) | Anti-electromagnetic interference structure of ultra-high-definition fluorescent navigation camera | |
| CN215639800U (en) | Electromagnetic shielding type medical thermal infrared imager | |
| TWM522449U (en) | Cable structure using nano-material for signal and electric power transmission | |
| TWI448208B (en) | Esd protection element and electronic apparatus | |
| CN205920781U (en) | Medical treatment line | |
| CN208093202U (en) | A kind of shielded cable | |
| CN207731724U (en) | A kind of anti-interference high-frequency data cable | |
| CN212461185U (en) | Multilayer protection electronic wire | |
| JP2009259874A (en) | Electronic apparatus and noise shielding method thereof | |
| CN207531268U (en) | The anti electromagnetic wave back-cover of electronic device | |
| CN222235404U (en) | An electromagnetic shielding structure for protecting display screen from ultra-high voltage static electricity | |
| CN216087428U (en) | Be applied to anti-interference subassembly of radio frequency therapeutic instrument | |
| CN222132842U (en) | Ultrasonic cleaning equipment capable of preventing electromagnetic wave interference | |
| CN220326153U (en) | Device for shielding electromagnetic interference of crystal oscillator and PCB | |
| CN206977918U (en) | A kind of anti-electromagnetic interference printed circuit board (PCB) | |
| CN216217748U (en) | PCB with electrostatic protection capability and electronic equipment | |
| CN203049804U (en) | Ionizing ray shield fireproofing insulation board | |
| CN204856321U (en) | Display with radiation protection functions | |
| CN209563126U (en) | A kind of consumer electronic device EMI electromagnetic interference shield coiled material | |
| CN201256517Y (en) | An electromagnetic radiation removing device for circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220121 |
|
| WD01 | Invention patent application deemed withdrawn after publication |