CN206364700U - A kind of EMI board mounting structures - Google Patents
A kind of EMI board mounting structures Download PDFInfo
- Publication number
- CN206364700U CN206364700U CN201720067221.XU CN201720067221U CN206364700U CN 206364700 U CN206364700 U CN 206364700U CN 201720067221 U CN201720067221 U CN 201720067221U CN 206364700 U CN206364700 U CN 206364700U
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- Prior art keywords
- face
- emi
- output stage
- power supply
- connecting part
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Abstract
The utility model discloses a kind of EMI board mounting structures, it can effectively filter out electromagnetic interference and the stress influence not brought by power supply output stage deformation.The mounting structure includes：EMI plates, power supply output stage, conducting connecting part and power box；Wherein, the conducting connecting part is made up of compliant conductive material, and input and interference filtering device are provided with the first face of the EMI plates, and the face of being conductively connected is provided with its second face；The input of EMI plates is electrically connected by the second face of conducting connecting part and power supply output stage；After the second face connection conducting connecting part of power supply output stage by insulating part insulation set on the inwall of power box；The second logical face of EMI plates is electrically connected by being conductively connected face with power box inwall.
Description
Technical field
The utility model is related to power technique fields, more particularly to a kind of EMI board mounting structures.
Background technology
In many application scenarios about power supply, quality is exported to power supply and power supply stability proposes higher want
Ask.The power supply of equipment such as conductor etching machine, it is generally required using electromagnetic interference (ElectroMagnetic
Interference, EMI) plate filters out interference.Such as common mode disturbances, otherwise referred to as longitudinal mode are disturbed, asymmetric to disturb or connect
Ground is disturbed, and it is the potential difference between current－carrying conductor and the earth.Common mode disturbances are sometimes referred as while being carried in each input signal
The shared signal interference of interface section.Common mode disturbances are transmitted between signal wire and ground, belong to asymmetry interference.
EMI plates of the prior art are typically to be arranged on directly or by screw pole on Switching Power Supply output stage, and it is present
Following weak point：First, due to small apart from remote, contact area with power supply output stage, filter out interference effect undesirable；Second,
The mode directly or indirectly installed, stress poor processing effect to external world, i.e., when installing connection load, often because output stage shakes
Movable property life stress causes EMI circuit boards to deform or drawing crack.
Utility model content
One of the purpose of this utility model at least that, in view of the above-mentioned problems of the prior art, providing a kind of EMI plates
Mounting structure, it can effectively filter out electromagnetic interference and the stress influence not brought by power supply output stage deformation.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of EMI board mounting structures, it includes：EMI plates, power supply output stage, conducting connecting part and power box；Its
In, the conducting connecting part is made up of compliant conductive material, and input and interference filtering are provided with the first face of the EMI plates
The face of being conductively connected is provided with device, its second face；
The input of EMI plates is electrically connected by the second face of conducting connecting part and power supply output stage；Power supply output stage
After second face connection conducting connecting part by insulating part insulation set on the inwall of power box；The second logical face of EMI plates
It is electrically connected by being conductively connected face with power box inwall.
Preferably, the conducting connecting part is flexible metal foil.
Preferably, the conducting connecting part is flexible copper clad.
Preferably, opening is provided with the power box, one end of the power supply output stage is stretched out by the opening
Casing.
Preferably, the EMI plates are located at the side of power supply output stage.
Preferably, it is described to be conductively connected face to cover copper face.
Preferably, the EMI plates are by being conductively connected face and casing common ground connection.
In summary, by adopting the above-described technical solution, the utility model at least has the advantages that：
Closely it is connected with power supply output stage by using wide area conducting connecting part, effectively improves and electrically connect
Connect contact area and filtration result；The conducting connecting part being made up of compliant conductive material, can be in installation load effectively
Eliminate stress influence of the power supply output stage deformation to EMI plates；EMI plates be conductively connected face and casing be electrically connected and with casing altogether
Connection, that is, enhance earthing effect, the process that EMI plate earthings processing is saved again.
Brief description of the drawings
Fig. 1 is the front view for the EMI board mounting structures that the embodiment of the utility model one is provided；
Fig. 2 is the stereogram for the EMI board mounting structures that the embodiment of the utility model one is provided；
Fig. 3 is the rearview for the EMI board mounting structures that the embodiment of the utility model one is provided.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is further elaborated, so that of the present utility model
Object, technical solution and advantage are more clearly understood.It should be appreciated that specific embodiment described herein is only to explain this reality
With new, it is not used to limit the utility model.
As depicted in figs. 1 and 2, EMI board mounting structure structures include disclosed in the embodiment of the utility model one：EMI plates, electricity
Source output stage, conducting connecting part and power box.
Fig. 1 is the front view for the EMI board mounting structures that the embodiment of the utility model one is provided, first face (Fig. 1 of EMI plates
The front of shown EMI plates) on be provided with input (not shown in figure, it is covered by conducting connecting part) and several interference filterings
Device (for example, common mode disturbances filtering circuit).
The face of being conductively connected is provided with the second face (i.e. the back side of EMI plates) of EMI plates.Preferably, it is described to be conductively connected face
To cover copper face.In order to increase contact area, the area for being conductively connected face can be more than the 80% of the second face of EMI plates area.
The second face (back side of Fig. 1 power supply output stages) that the input of EMI plates passes through conducting connecting part and power supply output stage
Electrical connection；After the second face connection conducting connecting part of power supply output stage by insulating part insulation set in power box
On wall (front of power box shown in Fig. 1), i.e. conducting connecting part one end be crimped on the back side of power supply output stage and insulating part it
Between, the input section of the other end and EMI plates is electrically connected.
In a preferred embodiment, conducting connecting part is made up of compliant conductive material, for example flexible metal foil, preferably soft
Property copper foil, therefore stress influence of the power supply output stage deformation to EMI plates can be effectively filtered out in installation load.Conducting connecting part
It is electrically connected by way of face is contacted with power supply chamber interior wall, so as to increase effective contact area, raising filters out effect to interference
Really.Further, the length of flexible metal foil can be more than 1/2nd of EMI plates, and its width is less than two points of EMI plate width
One of.Also, the EMI plates can be located at the side of power supply output stage, such as depicted in figs. 1 and 2, EMI plates are closely
It is arranged on the downside of power supply output stage.
Fig. 3 is the rearview for the EMI board mounting structures that the embodiment of the utility model one is provided, as shown in figure 3, the power supply
Opening is provided with casing, casing is stretched out in one end of the power supply output stage by the opening.Further, can also be in electricity
Insulating part is set on the box outer surface of source, in order to insulated fixed power source output stage.
In a preferred embodiment, the EMI plates are logical can cross the face of being conductively connected and casing common ground connection, can both strengthen
Earthing effect, can save EMI plate earthing treatment process again.
Embodiment of above is merely to illustrate preferred embodiment of the present utility model, rather than to limitation of the present utility model.
Those skilled in the technology concerned in the case where not departing from principle of the present utility model and scope, the various replacements made,
Modification and improvement should be included within protection domain of the present utility model.
Claims (7)
1. a kind of EMI board mounting structures, it is characterised in that the mounting structure includes：EMI plates, power supply output stage, it is conductively connected
Part and power box；Wherein, the conducting connecting part is made up of compliant conductive material, is set on the first face of the EMI plates
There are input and interference filtering device, the face of being conductively connected is provided with its second face；
The input of EMI plates is electrically connected by the second face of conducting connecting part and power supply output stage；The second of power supply output stage
After face connection conducting connecting part by insulating part insulation set on the inwall of power box；The second logical face of EMI plates passes through
Face is conductively connected to be electrically connected with power box inwall.
2. mounting structure according to claim 1, it is characterised in that the conducting connecting part is flexible metal foil.
3. mounting structure according to claim 1, it is characterised in that the conducting connecting part is flexible copper clad.
4. mounting structure according to claim 1, it is characterised in that opening, the electricity are provided with the power box
Casing is stretched out in one end of source output stage by the opening.
5. mounting structure according to claim 1, it is characterised in that the EMI plates are located at the side of power supply output stage.
6. mounting structure according to claim 1, it is characterised in that described to be conductively connected face to cover copper face.
7. mounting structure according to claim 1, it is characterised in that the EMI plates are total to by being conductively connected face with casing
Ground is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067221.XU CN206364700U (en) | 2017-01-19 | 2017-01-19 | A kind of EMI board mounting structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067221.XU CN206364700U (en) | 2017-01-19 | 2017-01-19 | A kind of EMI board mounting structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364700U true CN206364700U (en) | 2017-07-28 |
Family
ID=59380630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720067221.XU Active CN206364700U (en) | 2017-01-19 | 2017-01-19 | A kind of EMI board mounting structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206364700U (en) |
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2017
- 2017-01-19 CN CN201720067221.XU patent/CN206364700U/en active Active
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