CN206350296U - A kind of circuit board ground protection device - Google Patents
A kind of circuit board ground protection device Download PDFInfo
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- CN206350296U CN206350296U CN201621446581.2U CN201621446581U CN206350296U CN 206350296 U CN206350296 U CN 206350296U CN 201621446581 U CN201621446581 U CN 201621446581U CN 206350296 U CN206350296 U CN 206350296U
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- Prior art keywords
- power supply
- circuit board
- conducting block
- chassis cover
- protection device
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Abstract
The utility model is related to technical field of electric equipment, specifically related to a kind of circuit board ground protection device, including the conducting block for being connected in chassis cover, the position of the conducting block is corresponding with the installation site of power supply, after chassis cover is closed, the conducting block is contacted with outer casing of power supply, power supply is set to be turned on chassis cover, by arranging earth protective device on power supply, it is zero to make the potential on power supply, magnetic field is formed between power supply and bar magnet so as to avoid, the interference of generation magnetic circuit is solved to influence the problem of circuit board is normally used, make circuit board normal work, each functional unit effectively plays its functional effect.
Description
Technical field
The utility model is related to technical field of electric equipment, and in particular to a kind of circuit board ground protection device.
Background technology
Circuit board is the important carrier of electronic component, is also to constitute one of important part of electrical equipment, circuit board exists
During use, it is commonly installed and is fixed on cabinet, is worked so as to be formed in the space closed in cabinet.Include on circuit board many
Individual functional unit, each functional unit plays respective function affect, and each functional unit is arranged with numerous electronics members
Device, including resistance, electric capacity, potentiometer, coil etc., and there also is provided power supply in cabinet, circuit board and its are divided into
Each functional unit works in the case of power initiation.
Because electronic component and power supply are arranged in cabinet, all components are at a distance of relatively near, the transformer in power supply
（Specially coil）Larger magnetic field can be produced with the bar magnet in circuit, the magnetic field can be done to the obvious magnetic circuit of generation of circuit board
Disturb, so as to influence the effect of each functional unit on circuit board, and cause the function of whole circuit board to be detracted and reduced.
In the prior art, the problem of being disturbed for this generation magnetic circuit, generally carries out closure designs by power supply, makes in power supply
Transformer coil produce physical barrier, so as to weaken magnetic circuit interference, particularly when using cylindric power supply, prior art
The two ends of power supply are all closed（In the past to improve its heat dispersion, both ends of power is designed as opening form）, this side
Although method can weaken magnetic circuit interference to a certain extent, the problem of magnetic circuit is disturbed still is present.
Utility model content
Goal of the invention of the present utility model is：Magnetic is produced for the power supply in circuit board cabinet in the prior art and bar magnet
, so as to form stronger magnetic circuit interference, causing the problem of influence circuit board is normally used, there is provided a kind of protection of circuit board ground
Device, by arranging earth protective device on power supply, it is zero to make the potential on power supply, so as to avoid between power supply and bar magnet
Magnetic field is formed, generation magnetic circuit interference is solved so as to influence the problem of circuit board is normally used, makes circuit board normal work, each
Functional unit effectively plays its functional effect.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of circuit board ground protection device, including the conducting block for being connected in chassis cover, the position of the conducting block
Put corresponding with the installation site of power supply, after chassis cover is closed, the conducting block is contacted with outer casing of power supply, make on power supply and cabinet
Lid conducting.
Due to being provided with more electric elements on circuit board, circuit board is arranged in cabinet when in use, and this causes electricity
Subcomponent and power supply are arranged in cabinet, and all components are at a distance of relatively near, the transformer in power supply（Specially coil）With
Bar magnet in circuit can produce larger magnetic field, and the magnetic field can be disturbed the obvious magnetic circuit of generation of circuit board, so as to influence circuit
The effect of each functional unit on plate, and cause the function of whole circuit board to be detracted and reduced, in the prior art, not
Preferable method solves this technical problem.
This programme in chassis cover by setting conducting block, when circuit board is in running order, the upper lid meeting of cabinet
Close, conducting block can be contacted with outer casing of power supply after the upper lid of cabinet is closed, so that outer casing of power supply is turned on cabinet, due to machine
Case is provided with earthing or grounding means on the outer wall in itself, after power supply is connected by conducting block with cabinet so that outer casing of power supply liquid is grounded,
Potential on outer casing of power supply is zero, so that power supply no longer produces magnetic field with the bar magnet in circuit, solves power supply in the prior art
The problem of magnetic circuit is disturbed is produced between bar magnet, each functional unit on circuit board is played respective performance effect, it is ensured that whole
Individual circuit board can work normal, excellently.
Take the mode of conducting block, it is simple in construction, and can realize automatically conducting ground connection, when circuit board when in use, one
Surely casing can be closed, so as to realize purpose automatically with power on.
As preferred scheme of the present utility model, the conducting block includes the installation for being used to connect in chassis cover
Portion, in addition to the contact site connected with installation portion, installation portion and the contact site integral structure, the contact site be used for and
Power supply is turned on.Conducting block mainly includes two parts, installation portion and contact site, and installation portion is used to install, be connected in chassis cover
Side, contact site is mainly used in turning on power supply, when chassis cover is closed, when circuit board is in running order, due on the outside of cabinet
Ground connection so that power supply is connected by the contact site of conducting block with cabinet, is grounded, so as to reach the effect of protection circuit plate.
As preferred scheme of the present utility model, the conducting block is cube, and the contact site and installation portion are respectively
Two relative faces.Conducting block is set to cube structure, facilitates it to be connected with chassis cover, in use, by cube
Mounting structure is opened up in body structure, conducting block is fixed in chassis cover by mounting structure, in use, by installing
Certain one side of cube structure is arranged on the inner side of chassis cover by structure, and this is provided with mounting structure for conducting block sideways
Side, when chassis cover is closed, because the position of conducting block is corresponding with position of source, the mounting surface of cube structure it is relative
Side is contacted with power supply laminating, makes power ground, potential is zero.
As preferred scheme of the present utility model, the conducting block is cylinder, and the contact site and installation portion are respectively
Two relative bottom surfaces of the cylinder.Conducting block is set to cylinder, the cylindrical structure include two bottom surfaces up and down and
The face of cylinder, in use, the upper bottom surface or bottom surface of the conducting block of cylindrical structure are arranged on to the inner side of chassis cover, now,
The axis of cylinder perpendicular to chassis cover plate face, when chassis cover is closed, position and position of source due to conducting block
Correspondence, another bottom surface of cylinder is fitted with electrical power contacts, makes power ground, potential is zero.
As preferred scheme of the present utility model, the conducting block is that detachable is connected with chassis cover.In conducting block
On offer installation counterbore, accordingly, screwed hole is also offered on chassis cover, attachment screw is by installing counterbore and screw thread
Hole is connected, and conducting block is arranged in chassis cover.
As preferred scheme of the present utility model, elastomeric element is provided with the contact site, the elastomeric element is conduction
Material.
Power supply is arranged in cabinet, and itself structure is hard structure, meanwhile, conducting block is similarly preferable for electric conductivity
Metal material, to realize that conducting block is fitted with the abundant contact of power supply, it is ensured that contact condition is excellent, the two contact when it is necessary
In a kind of state mutually oppressed, this can make the infringement of battery pair.
By setting elastomeric element on contact site, contact site is set to be fitted with electrical power contacts by elastomeric element, so as to have
Effect avoids the danger that power supply is damaged by compressing.When chassis cover is closed, the bullet on conducting block contact site is arranged on
Property part first with electrical power contacts, because elastomeric element has certain elasticity, it may occur that certain deformation, and power supply will not be sent out
Raw deformation, so as to protect power supply.
As preferred scheme of the present utility model, the elastomeric element is the hollow cylinder knot that sheet metal is curled into
Structure, the face of cylinder of the cylindrical structure is connected on contact site.
Elastomeric element is set to hollow cylindrical structure, and the face of cylinder is connected on contact site, it is upper when cabinet
After lid is closed, the face of cylinder of the hollow cylindrical structure and electrical power contacts are deformed upon by hollow-core construction, and cylindrical structure becomes
For flat, realize that elastomeric element is fully contacted with power supply, the hollow cylindrical structure is obtained using sheet metal, the gold
Category thin slice is rectangular configuration, when sheet metal is crimped, and forms hollow cylindrical structure.
As preferred scheme of the present utility model, the quantity of the conducting block is two pieces.The quantity of conducting block is set to
Two pieces, can increase the contact area of conducting block and power supply, it is ensured that power supply is fitted by the contact of two conducting blocks, is fully realized
With the connection of cabinet.
As preferred scheme of the present utility model, the quantity of the conducting block is four.The quantity of conducting block is set to
Four, it can further increase the contact area of conducting block and power supply, it is ensured that power supply is fitted by the contact of two conducting blocks, fully
The connection with cabinet is realized, and when wherein one or two conducting block and electrical power contacts are bad, also has other conducting blocks
Fully contacted with power supply, it is ensured that outer casing of power supply dead ground.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, by setting conducting block in chassis cover, when circuit board is in running order, the upper lid of cabinet can be closed,
Conducting block can be contacted with outer casing of power supply after the upper lid of cabinet is closed, so that outer casing of power supply is turned on cabinet, due to cabinet sheet
Body is provided with earthing or grounding means on the outer wall, after power supply is connected by conducting block with cabinet so that outer casing of power supply liquid is grounded, power supply
Potential on shell is zero, so that power supply no longer produces magnetic field with the bar magnet in circuit, solves power supply in the prior art and magnetic
The problem of magnetic circuit is disturbed is produced between rod, each functional unit on circuit board is played respective performance effect, it is ensured that whole electricity
Road plate can work normal, excellently；
2nd, by setting elastomeric element on contact site, contact site is made to be fitted with electrical power contacts by elastomeric element, so that
It effectively prevent the danger that power supply is damaged by compressing.When chassis cover is closed, it is arranged on conducting block contact site
Elastomeric element first with electrical power contacts, because elastomeric element has certain elasticity, it may occur that certain deformation, and power supply will not
Deform upon, so as to protect power supply；
3rd, by the above-mentioned means, avoiding producing magnetic field between power supply and bar magnet, formed so as to solve because producing magnetic field
To circuit board produce magnetic circuit disturb the problem of, it is ensured that each functional unit normal work on circuit board and circuit board, play
Respective performance effect.Meanwhile, the guard method is simple and easy to apply, it is not necessary to individually carry out manual operation, when circuit board is in work
When making state, the upper lid of cabinet is closed, now, is automatically performed the connection of power supply and casing, is made on power supply
Potential is zero, will not produce magnetic field with bar magnet, so as to form magnetic circuit interference, the normal of influence circuit board is used.
Brief description of the drawings：
Fig. 1 is the structural representation of the circuit board ground protection device of embodiment 1.
Fig. 2 is the structural representation of the circuit board ground protection device of embodiment 2.
Fig. 3 is the structural representation of the conducting block of circuit board ground protection device in embodiment 2.
Fig. 4 is the partial enlarged drawing at A in Fig. 2.
Fig. 5 is the structural representation of the conducting block of circuit board ground protection device in embodiment 3.
Fig. 6 for embodiment 2 circuit board ground protection device in elastomeric element structural representation.
Marked in figure：1- cabinets, 101- chassis covers, 2- conducting blocks, 21- installation portions, 22- contact sites, 23- mounting holes,
3- power supplys, 4- elastomeric elements.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
Embodiment 1
The present embodiment is applied to circuit board and is arranged on the occasion protected in cabinet to circuit board.
As shown in figures 1 and 3, circuit board ground protection device, including the conducting block for being connected in chassis cover 101
2, the position of the conducting block 2 is corresponding with the installation site of power supply 3, after chassis cover 101 is closed, outside the conducting block 2 and power supply
Shell is contacted, and power supply 3 is turned on chassis cover 101.
Power supply 3 is arranged on inside cabinet 1, and cabinet 1 includes box body and chassis cover 101, and conducting block 2 is connected on cabinet
On the inner surface of lid 101, after chassis cover 101 is covered with casing, the conducting block 2 of the inner side of chassis cover 101 connects with power supply 3
Touch.
Due to being provided with more electric elements on circuit board, circuit board is arranged in cabinet when in use, and this causes electricity
Subcomponent and power supply are arranged in cabinet, and all components are at a distance of relatively near, the transformer in power supply（Specially coil）With
Bar magnet in circuit can produce larger magnetic field, and the magnetic field can be disturbed the obvious magnetic circuit of generation of circuit board, so as to influence circuit
The effect of each functional unit on plate, and cause the function of whole circuit board to be detracted and reduced, in the prior art, not
Preferable method solves this technical problem.
This programme in chassis cover by setting conducting block, when circuit board is in running order, the upper lid meeting of cabinet
Close, conducting block can be contacted with outer casing of power supply after the upper lid of cabinet is closed, so that outer casing of power supply is turned on cabinet, due to machine
Case is provided with earthing or grounding means on the outer wall in itself, after power supply is connected by conducting block with cabinet so that outer casing of power supply liquid is grounded,
Potential on outer casing of power supply is zero, so that power supply no longer produces magnetic field with the bar magnet in circuit, solves power supply in the prior art
The problem of magnetic circuit is disturbed is produced between bar magnet, each functional unit on circuit board is played respective performance effect, it is ensured that whole
Individual circuit board can work normal, excellently.
Take the mode of conducting block, it is simple in construction, and can realize automatically conducting ground connection, when circuit board when in use, one
Surely casing can be closed, so as to realize purpose automatically with power on.
Conducting block 2 includes the installation portion 21 for being used to connect in chassis cover 101, in addition to is connected with installation portion 21
Contact site 22, the installation portion 21 and contact site 22 be integral type structure, the contact site 22 be used for and power supply 3 turn on, lead
Electric block 2 mainly includes being additionally provided with mounting hole 23 on two parts, installation portion 21 and contact site 22, conducting block 2, and installation portion 21 passes through peace
Dress hole 23 installs, is fixed on the inner side of chassis cover 101, and contact site 22 is mainly used in turning on power supply 3, when chassis cover 101 is closed
Close, when circuit board is in running order, because the outside of cabinet 1 is grounded so that power supply 3 by the contact site 22 of conducting block 2 with
Cabinet 1 is connected, and is grounded, so as to reach the effect of protection circuit plate.
Conducting block 2 is cube, and the contact site 22 and installation portion 21 are respectively two relative faces, and conducting block is set
For cube structure, it is facilitated to be connected with chassis cover, in use, by opening up mounting structure on cube structure, passing through
Mounting structure makes conducting block be fixed in chassis cover, in use, by mounting structure by certain side of cube structure
Face is arranged on the inner side of chassis cover, and this is provided with the side of mounting structure for conducting block sideways, when chassis cover is closed, by
Corresponding with position of source in the position of conducting block, the opposite side of the mounting surface of cube structure is contacted with power supply laminating, makes electricity
Source is grounded, and potential is zero.
Conducting block 2 is that detachable is connected with chassis cover 101, and installation counterbore is offered on conducting block, accordingly,
Also screwed hole is offered on chassis cover, attachment screw is connected by installing counterbore with screwed hole, conducting block is arranged on cabinet
In upper lid.
The quantity of conducting block 2 is two pieces, and two pieces conducting block is arranged side by side, when chassis cover is covered, and energy and power supply
Completely attach to, the quantity of conducting block is set to two pieces, the contact area of conducting block and power supply can be increased, it is ensured that power supply passes through
The contact laminating of two conducting blocks, fully realizes the connection with cabinet.
The present embodiment in chassis cover by setting conducting block, when circuit board is in running order, the upper lid of cabinet
It can close, conducting block can be contacted with outer casing of power supply after the upper lid of cabinet is closed, so that outer casing of power supply is turned on cabinet, due to
Cabinet is provided with earthing or grounding means on the outer wall in itself, after power supply is connected by conducting block with cabinet so that outer casing of power supply liquid connects
Potential on ground, outer casing of power supply is zero, so that power supply no longer produces magnetic field with the bar magnet in circuit, is solved electric in the prior art
The problem of magnetic circuit is disturbed is produced between source and bar magnet, each functional unit on circuit board is played respective performance effect, it is ensured that
Whole circuit board can work normal, excellently.
Embodiment 2
The present embodiment is applied to circuit board and is arranged on the occasion protected in cabinet to circuit board.
The circuit board ground protection device of the present embodiment is same as Example 1, and difference is：
As shown in Figure 2, Figure 3 and Figure 4, conducting block 2 includes installation portion 21 and contact site 22, and bullet is provided with contact site 22
Property part 4, the elastomeric element is conductive material, and power supply is arranged in cabinet, and itself structure is hard structure, meanwhile, it is conductive
Block is similarly the preferable metal material of electric conductivity, to realize that conducting block is fitted with the abundant contact of power supply, it is ensured that contact shape
State is excellent, and the two necessarily be in a kind of state mutually oppressed in contact, and this can make the infringement of battery pair.
By setting elastomeric element on contact site, contact site is set to be fitted with electrical power contacts by elastomeric element, so as to have
Effect avoids the danger that power supply is damaged by compressing.When chassis cover is closed, the bullet on conducting block contact site is arranged on
Property part first with electrical power contacts, because elastomeric element has certain elasticity, it may occur that certain deformation, and power supply will not be sent out
Raw deformation, so as to protect power supply.
As shown in fig. 6, elastomeric element 4 is the hollow cylindrical structure that sheet metal is curled into, the circle of the cylindrical structure
Cylinder is connected on contact site, and elastomeric element is set into hollow cylindrical structure, and the face of cylinder is connected on contact site,
After the upper lid of cabinet is closed, the face of cylinder of the hollow cylindrical structure and electrical power contacts are deformed upon, circle by hollow-core construction
Column structure is changed into flat, realizes that elastomeric element is fully contacted with power supply, the hollow cylindrical structure uses sheet metal
Obtain, the sheet metal is rectangular configuration, when sheet metal is crimped, and forms hollow cylindrical structure.
The quantity of conducting block 2 is four, and the quantity of conducting block is set into four, can further increase conducting block and power supply
Contact area, it is ensured that power supply is fitted by the contact of two conducting blocks, fully realizes the connection with cabinet, and ought wherein one
When individual or two conducting blocks and bad electrical power contacts, there are other conducting blocks fully to be contacted with power supply, it is ensured that outer casing of power supply is complete
Full ground connection.
Embodiment 3
The present embodiment is applied to circuit board and is arranged on the occasion protected in cabinet to circuit board.
The circuit board ground protection device of the present embodiment is same as Example 1, and difference is：
As shown in figure 5, conducting block 2 is cylinder, the contact site 22 is respectively that the cylinder is relative with installation portion 21
Two bottom surfaces, cylinder is set to by conducting block, and the cylindrical structure includes two bottom surfaces and the face of cylinder up and down, in use,
The upper bottom surface or bottom surface of the conducting block of cylindrical structure are arranged on to the inner side of chassis cover, now, the axis of cylinder hangs down
Directly in the plate face of chassis cover, when chassis cover is closed, because the position of conducting block is corresponding with position of source, cylinder it is another
One bottom surface is fitted with electrical power contacts, makes power ground, and potential is zero.
Claims (9)
1. a kind of circuit board ground protection device, it is characterised in that including the conducting block for being connected in chassis cover, this is led
The position of electric block is corresponding with the installation site of power supply, and after chassis cover is closed, the conducting block is contacted with outer casing of power supply, makes power supply
Turned on chassis cover.
2. circuit board ground protection device as claimed in claim 1, it is characterised in that the conducting block includes being used to be connected
It is connected on the installation portion in chassis cover, in addition to the contact site connected with installation portion, installation portion and the contact site integral type
Structure, the contact site is used for and power supply conducting.
3. circuit board ground protection device as claimed in claim 2, it is characterised in that the contact site and installation portion are respectively
Two relative faces.
4. circuit board ground protection device as claimed in claim 2, it is characterised in that the conducting block is cylinder, described
Contact site and installation portion are respectively two relative bottom surfaces of the cylinder.
5. the circuit board ground protection device as described in claim 3 or 4, it is characterised in that the conducting block and chassis cover
Connected for detachable.
6. circuit board ground protection device as claimed in claim 5, it is characterised in that be provided with elastic portion on the contact site
Part, the elastomeric element is conductive material.
7. circuit board ground protection device as claimed in claim 6, it is characterised in that the elastomeric element is rolled up for sheet metal
It is bent into hollow cylindrical structure, the face of cylinder of the cylindrical structure is connected on contact site.
8. circuit board ground protection device as claimed in claim 5, it is characterised in that the quantity of the conducting block is two pieces.
9. circuit board ground protection device as claimed in claim 5, it is characterised in that the quantity of the conducting block is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446581.2U CN206350296U (en) | 2016-12-27 | 2016-12-27 | A kind of circuit board ground protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446581.2U CN206350296U (en) | 2016-12-27 | 2016-12-27 | A kind of circuit board ground protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350296U true CN206350296U (en) | 2017-07-21 |
Family
ID=59321996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621446581.2U Active CN206350296U (en) | 2016-12-27 | 2016-12-27 | A kind of circuit board ground protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206350296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455466A (en) * | 2016-12-27 | 2017-02-22 | 成都芯通科技股份有限公司 | Grounding protection device and method of a circuit board |
-
2016
- 2016-12-27 CN CN201621446581.2U patent/CN206350296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455466A (en) * | 2016-12-27 | 2017-02-22 | 成都芯通科技股份有限公司 | Grounding protection device and method of a circuit board |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200810 Address after: 610000 No.6 building, hi tech Incubation Park, north section of Tianfu Avenue, Chengdu, Sichuan Province Patentee after: CHENGDU NTS SOFTWARE Co.,Ltd. Address before: 610041, Sichuan Chengdu hi tech Zone Tianfu road hi tech incubator park information security base 3 and 4 floor Patentee before: CHENGDU NTS TECHNOLOGY Co.,Ltd. |