CN108599541A - Anti-vibration, shock proof starting current inhibit filter module and electronic equipment - Google Patents
Anti-vibration, shock proof starting current inhibit filter module and electronic equipment Download PDFInfo
- Publication number
- CN108599541A CN108599541A CN201810687969.9A CN201810687969A CN108599541A CN 108599541 A CN108599541 A CN 108599541A CN 201810687969 A CN201810687969 A CN 201810687969A CN 108599541 A CN108599541 A CN 108599541A
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- Prior art keywords
- filter module
- starting current
- nmos tube
- guide pin
- vibration
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- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
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- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
Abstract
The present invention is suitable for technical field of electronic communication, provides a kind of anti-vibration, shock proof starting current inhibits filter module and electronic equipment, and it includes shell, several guide pins, printed circuit board, NMOS tube and power-supply filter which, which inhibits filter module,.Compared with prior art, the present invention can inhibit the surge current generated when power supply is connected by NMOS tube；The characteristics of frequency other than the frequency point or the frequency point of specific frequency in power cord being effectively filtered out using power-supply filter, to can inhibit the electromagnetic interference signal in starting current inhibition filter module；By the way that each guide pin, NMOS tube and power-supply filter are welded on a printed circuit, by filling glue by printed circuit board, NMOS tube and power-supply filter embedding in the housing, NMOS tube is bonded in the bottom of shell by heat-conducting glue layer, so that starting current inhibits the sound construction of filter module, anti-vibration and strong shock resistance can reach military requirements.
Description
Technical field
The present invention is suitable for technical field of electronic communication, is to be related to a kind of anti-vibration, shock proof startup more specifically
Electric current is inhibited filter module and is inhibited the electronic equipment of filter module using the starting current.
Background technology
Switching Power Supply is exactly to be led to and ended with the road for carrying out high speed by circuit controling switch pipe, is height by DC conversion
The alternating current of frequency is supplied to transformer to carry out transformation, to generate required one or more groups of voltages.In electronic communication skill
In art field, the use of Switching Power Supply is very universal, and usage amount is also prodigious.
The structure of Switching Power Supplies (especially high power switching power supply) many at present is intended to the developing direction of miniaturization,
This requires Switching Power Supplies to need to have stronger anti-vibration and impact resistance.However current Switching Power Supply is in power-up moment
A larger surge current is drawn, this surge current is likely to be breached 10 times -100 times of power supply static working current.Cause
This, this this may result in problems with：First, if DC power supply cannot supply enough starting currents, Switching Power Supply may
It can not start into a kind of lock-out state；Second, this surge current may cause the reduction of input supply voltage, it is sufficient to draw
Play other power-equipment instant power-downs using same input power；Third, this surge current are accompanied with stronger electromagnetism letter
Number, serious interference can be caused to circuit；4th, Switching Power Supply is pierced by powerful surge current in a smaller space
Swash, easy tos produce certain deformation or damage, anti-vibration and impact resistance are poor.
However, existing protective device cannot preferably inhibit surge current, and resistance is big when being connected, operating current mistake
Small, recovery time is long, generates heat the shortcomings of excessive.Therefore, design is a kind of can effectively inhibit the wave generated when power supply is connected
Electric current and electromagnetic interference signal are gushed, and the protective device that can have anti-vibration and impact resistance is that technology urgently to be resolved hurrily is asked
Topic.
Invention content
The purpose of the present invention is to provide a kind of anti-vibration, shock proof starting currents to inhibit filter module, existing to solve
There is protective device present in technology that cannot effectively inhibit surge current and electromagnetic interference signal, and does not have anti-vibration and anti-impact
The problem of hitting ability.
To achieve the above object, the technical solution adopted by the present invention is：A kind of anti-vibration, shock proof starting current are provided
Inhibit filter module, including shell, several guide pins, the printed circuit board in the shell, after switch be used for inhibit electricity
The source NMOS tube of generated surge current and generated electromagnetic interference when after switch being used to that power supply to be inhibited to connect when connecting
The power-supply filter of signal, the NMOS tube and the power-supply filter are electrical connected with the printed circuit board respectively, described
NMOS tube and the power-supply filter are welded on the printed circuit board, and the shell has the cavity of a top end opening,
One end of each guide pin is weldingly connected with the printed circuit board, the other end of each guide pin by the cavity the opening
Place is stretched out；It further includes the heat conduction for the NMOS tube to be adhered to the housing bottom that the starting current, which inhibits filter module,
Glue-line；The printed circuit board, the NMOS tube and the power-supply filter are potted in by filling glue described in the shell
In cavity.
Further, the power-supply filter includes being set in the one side that the printed circuit board is open towards the cavity
Resistance, capacitance and diode, and the inductance on the printed circuit board another side；It is equipped in the printed circuit board
Circuit for being electrically connected the resistance, the capacitance, the diode and the inductance, the resistance, the capacitance, institute
It states diode and is spaced setting two-by-two, the inductance and the NMOS tube are located on the same side of the printed circuit board, and institute
Inductance is stated with the NMOS tube interval to be arranged.
Further, between being smaller than between the capacitance and the diode between the resistance and the capacitance
Away from.
Further, the resistance and the capacitance are respectively positioned on the surface of the NMOS tube, and the diode is located at institute
The top of inductance is stated, and the diode is stretched out along one end part of the inductance.
Further, the shell is rectangular, and the shell has first direction and vertical with the first direction the
Two directions, the starting current inhibit filter module including three groups to be respectively parallel to the first direction and in the second direction
Upper spaced guide pin group, guide pin group described in every group include spaced two guide pins, and guide pin group described in every group
In two guide pins between spacing it is equal.
Further, the top surface of the shell include two short sides parallel with the first direction and with the second party
To two parallel long sides, each short side and the arc-shaped chamfering structure in the junction of the corresponding long side.
Further, guide pin group described in three groups includes along the second direction successively spaced first needle group, second
Needle group and third needle group, two guide pins of the first needle group are respectively arranged on two arcs at the short side both ends
At chamfering, two guide pins of the third needle group are respectively arranged on two arc anglings at another short side both ends
Place.
Further, the first needle group and the second needle group in this second direction be smaller than described second
Needle group and the spacing of the third needle group in this second direction.
Further, the first needle group and the second needle group are encircled into for housing the resistance and the capacitance
First chamber, the second needle group are encircled into the second chamber for housing the diode with the third needle group.
Another object of the present invention is to provide a kind of electronic equipment, including further include above-mentioned by protection circuit module
Starting current inhibits filter module, the starting current that filter module is inhibited to be electrical connected by protection circuit module with described.
Starting current provided by the invention inhibits the advantageous effect of filter module to be：Compared with prior art, of the invention
By the way that NMOS tube and power-supply filter have been electrically connected on a printed circuit, when NMOS tube and power-supply filter are led completely
After logical, the characteristics such as operating current big, fever small small using NMOS tube conducting resistance so that starting current inhibits filter module to exist
Work is not easy to generate heat when passing through electric current, the rated current that starting current inhibits filter module can be promoted, to reach starting current
Inhibit the requirement of filter module low D.C. resistance and high rated current, the surge current generated when to inhibit power supply to connect；It is logical
The characteristics of power-supply filter can effectively filter out the frequency other than the frequency point or the frequency point of specific frequency in power cord is crossed, from
And it can inhibit the electromagnetic interference signal in starting current inhibition filter module；By by each guide pin, NMOS tube and power-supply filter
Welding on a printed circuit, by filling glue by printed circuit board, NMOS tube and power-supply filter embedding in the housing, pass through
NMOS tube is bonded in the bottom of shell by heat-conducting glue layer so that starting current inhibit filter module sound construction, anti-vibration and
Strong shock resistance can reach military requirements.
The advantageous effect of electronic equipment provided by the invention is：Compared with prior art, electronics provided by the invention is set
It is standby that filter module is inhibited using above-mentioned starting current, it can effectively inhibit surge current, conducting resistance is low, and delay startup electric current is small, extensive
The multiple time is fast, and anti-electromagnetic interference capability is strong.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the schematic cross-sectional view that starting current provided in an embodiment of the present invention inhibits filter module；
Fig. 2 is the circuit diagram of electronic equipment provided by the invention；
Fig. 3 is the schematic top plan view that starting current provided by the invention inhibits filter module；
Fig. 4 is the parameter schematic diagram that starting current provided by the invention inhibits filter module；
Fig. 5 is the parameter schematic diagram that starting current provided by the invention inhibits filter module side view.
Wherein, each attached drawing main mark in figure：
1- shells；The first short sides of 11-；The second short sides of 12-；The first long sides of 13-；The second long sides of 14-；15- arc anglings；
2- guide pins；21- the first needle groups；The first guide pins of 211-；The second guide pins of 212-；22- the second needle groups；221- thirds are led
Needle；The 4th guide pins of 222-；23- third needle groups；The 5th guide pins of 231-；The 6th guide pins of 232-；
31- resistance；32- capacitances；33- diodes；34- inductance；
4- printed circuit boards；5-NMOS is managed；6- heat-conducting glue layers；The filling glue of 7-.
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term "center", " length ", " width ", " thickness ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
Also referring to Fig. 1 to Fig. 5, now filter module is inhibited to say starting current provided in an embodiment of the present invention
It is bright.It includes shell 1, several guide pins 2, printed circuit board 4, NMOS (N-Mental-Oxide- that the starting current, which inhibits filter module,
Semiconductor, N-type Metal-oxide-semicondutor) pipe 5 and power-supply filter (figure is not marked).Shell 1 has top end opening
Cavity, printed circuit board 4 be arranged in the cavity；NMOS tube 5 and power-supply filter are arranged on printed circuit board 4, and
NMOS tube 5 and power-supply filter are electrically connected with printed circuit board 4 respectively；One end of several guide pins 2 stretch into cavity and with print
Printed circuit board 4 is electrically connected, and the other end is stretched out by the opening of the cavity, and each guide pin 2 stretches out the length phase of 1 part of shell
Deng.
NMOS tube 5 connects to form starting current control circuit with circuit input positive and negative anodes, can inhibit surge current；Power supply is filtered
Wave device is connected with circuit input positive and negative anodes, is connected with circuit output end positive and negative anodes, be can inhibit electromagnetic interference signal；NMOS tube 5 with
Power-supply filter forms parallel relationship.
It further includes the heat-conducting glue layer 6 for heat dissipation that the starting current, which inhibits filter module, which is set to NMOS tube
Between 5 and 1 bottom of shell, the one side of heat-conducting glue layer 6 is bonded with the corresponding surface of NMOS tube 5, the another side and shell of heat-conducting glue layer 6
1 inner bottom surface is bonded, and inductance 34 is arranged with the interval of heat-conducting glue layer 6.Specifically, NMOS tube 5 is enhanced N-channel MOS
(Mental-Oxide-Semiconductor, Metal-oxide-semicondutor) is managed, and NMOS tube 5 is tightly attached to printed circuit on one side
On plate 4, another side is tightly attached in heat-conducting glue layer 6, and the another side of heat-conducting glue layer 6 is tightly attached on the bottom surface of cavity.Preferably, exist
The bottom surface of NMOS tube 5 and the lower half portion of side wall are bonded with heat-conducting glue layer 6.Heat-conducting glue layer 6 be bond plies, can make by
Acrylic polymers filling thermal conductive ceramic powder is combined with organic silicon adhesive, the characteristic with high heat conduction and insulation, and
With flexibility, compressibility, docile property, strong viscosity.Adaptive temperature range is big, can fill up the surface of out-of-flatness, can close and firm
Ground is bonded heat source device and cooling fin, and heat is quickly conducted.By the way that shell 1 and NMOS tube 5 are closely linked,
The heat-sinking capability of NMOS tube 5 can be improved, NMOS tube 5 uses the device of -55 DEG C -175 DEG C of operating temperature range, thus, start electricity
Stream inhibits the operating temperature range of filter module that can meet military requirement at -55 DEG C -100 DEG C.The starting current inhibits
Filter module can realize the requirement of wide operating temperature range, while enhance the reliability that starting current inhibits filter module, reach
Military requirements：Meet the test requirements document of SJ20668, GJB360B and GJB548B simultaneously.
Printed circuit board 4, NMOS tube 5 and power-supply filter are potted in by filling glue 7 in the cavity of shell 1.Filling glue 7
For the filling glue of epoxy resin 7 of ability and impact resistance with antivibration.Preferably, which is 5180A/B glue.It adopts
It is filling with 5180A/B glue, the reliability that starting current inhibits filter module is increased, realizes that starting current inhibits filter module
Anti-vibration and impact resistance, to reach military requirements.In other embodiments, filling glue 7 can also be other materials system
At filling glue 7, such as the filling glue 7 of organic siliconresin or the filling glue 7 of polyurethane do not limit uniquely herein.
Above-mentioned fill operations can be divided into two steps and carry out respectively.First progress is filling for the first time, and the one of embedding shell 1
Half, then progress is filling for the second time, at this time that the whole embeddings of shell 1 are complete.It, can will be inside shell 1 by potting operation twice
Air discharge as much as possible so that be set to the installation fixation of each parts inside shell 1, opened to can be improved
Streaming current inhibits anti-vibration and the impact resistance of filter module.In other embodiments, filling to be divided into multiple steps
It carries out respectively, principle is similar with the operation of embedding twice, does not limit uniquely herein.
In above-mentioned fill operations twice, the type of each filling filling glue 7 can be different.As first time is filling
It is the filling glue of 5180A/B, second can be with the filling glue of filling organic siliconresin.By different types of filling glue 7, can effectively increase
Strong starting current inhibits anti-vibration and the impact resistance of filter module.In other embodiments, filling filling glue 7 every time
Type and component can be adjusted according to actual needs, not limit uniquely herein.
In above-mentioned fill operations, be not limited to it is filling from the top of shell 1, can also be from the bottom of shell 1 or other
Progress is filling at position, more effectively the air inside shell 1 can be discharged so that each zero be set to inside shell 1
The installation fixation of part, to which anti-vibration and the impact resistance that starting current inhibits filter module can be improved.
Above-mentioned NMOS tube 5 is preferably the semiconductor N metal-oxide-semiconductor 5 of small-volume large-power.
Above-mentioned shell 1 is made of metal material, preferably aluminum alloy materials, has many advantages, such as that thermal diffusivity is good, frivolous.
Above-mentioned guide pin 2 is cylinder configuration, is convenient for the inserting of guide pin 2, the inserting effect of guide pin 2 is good, and sealing performance is excellent.
In other embodiments, guide pin 2 or other configurations, do not limit uniquely herein.
Starting current provided by the invention inhibits filter module, and compared with prior art, the present invention passes through in printed circuit
NMOS tube 5 and power-supply filter have been electrically connected on plate 4, after NMOS tube 5 and fully on power-supply filter, has utilized
The characteristics such as 5 conducting resistance of NMOS tube is small, operating current is big, fever is small so that starting current inhibits filter module to pass through in work
It is not easy to generate heat when electric current, the rated current that starting current inhibits filter module can be promoted, inhibit filtering to reach starting current
The requirement of module low D.C. resistance and high rated current, the surge current generated when to inhibit power supply to connect；It is filtered using power supply
The characteristics of wave device can effectively filter out the frequency other than the frequency point or the frequency point of specific frequency in power cord, to can inhibit
Starting current inhibits the electromagnetic interference signal in filter module；By the way that each guide pin 2, NMOS tube 5 and power-supply filter are welded on
On printed circuit board 4, by filling glue 7 by printed circuit board 4, NMOS tube 5 and power-supply filter embedding within the case 1, pass through
NMOS tube 5 is bonded in the bottom of shell 1 by heat-conducting glue layer 6 so that starting current inhibits the sound construction of filter module, anti-vibration
And strong shock resistance, military requirements can be reached.
Further, also referring to Fig. 1, inhibit the one of filter module as starting current provided in an embodiment of the present invention
Kind specific implementation mode, power-supply filter include the resistance 31 being set on the side that printed circuit board 4 is open towards cavity, capacitance
32 and diode 33 and the inductance 34 on another side of the printed circuit board 4 towards 1 bottom surface of shell, resistance 31, capacitance
32, diode 33 and inductance 34 are electrical connected with printed circuit board 4 respectively, and resistance 31, capacitance 32, diode 33 are spaced set two-by-two
It sets, inductance 34 and NMOS tube 5 are located on the same side of printed circuit board 4, and inductance 34 is arranged with the interval of NMOS tube 5.Specifically
Ground, resistance 31, capacitance 32 and diode 33 are arranged in the upper surface of printed circuit board 4, and NMOS tube 5 and the setting of inductance 34 are being printed
The bottom surface of circuit board 4.
Preferably, the distance between resistance 31 and capacitance 32 are less than the distance between capacitance 32 and diode 33, and resistance
31, capacitance 32 and diode 33 have same height, and the surface of resistance 31, capacitance 32 and diode 33 is respectively positioned on same level
On face.
Preferably, resistance 31 and capacitance 32 are located at the surface of NMOS tube 5, and diode 33 is located at the top of inductance 34, and
Diode 33 is stretched out along one end part of inductance 34.This structure, power-supply filter input, the resistance of outlet side and power supply and load-side
Anti- adaptation is bigger, more effective to the decaying of electromagnetic interference, inhibits the ability of electromagnetic interference signal stronger.
Further, also referring to Fig. 3 and Fig. 4, inhibit filtering mould as starting current provided in an embodiment of the present invention
A kind of specific implementation mode of block, shell 1 are rectangular, which has first direction and the second party vertical with first direction
To starting current inhibits filter module to be respectively parallel to first direction and in a second direction spaced guide pin including three groups
Group, every group of guide pin group includes spaced two guide pins 2, and the spacing between two guide pins 2 in every group of guide pin group is equal.
Specifically, shell 1 in the horizontal plane be projected as rectangle, shell 1 have width direction (directions K1 in diagram, below
Claim first direction K1) and the length direction vertical with the width direction (directions K2 in diagram claim second direction K2 below).
The quantity of guide pin 2 is the six roots of sensation, is divided into three groups, every group two, every group of guide pin 2 is set gradually in a second direction, and in every group of guide pin 2
Two guide pins 2 on the same line, and the distance between two guide pins 2 in each group guide pin 2 are equal, are D.This structure,
By the spaced design of three groups of guide pin groups, starting current can be facilitated to inhibit the electric connection between filter module and electronic equipment.
In other embodiments, the quantity of guide pin 2 and position can also be increased and decreased or change according to actual needs, not make herein unique
It limits.
Further, also referring to Fig. 3, inhibit the one of filter module as starting current provided in an embodiment of the present invention
Kind of specific implementation mode, the top surface of shell 1 include two short sides parallel with first direction and parallel with second direction two
Long side, each short side and arc-shaped 15 structure of chamfering in the junction of corresponding long side.Specifically, the throwing of shell 1 in the vertical direction
Shadow is square, and it includes two short sides and with second direction parallel two long sides parallel with first direction that this is rectangular, long side
Length will be longer than the length of short side, arc-shaped 15 configuration of chamfering in four rectangular angles.This structure, by 1 side of being designed to of shell
Shape, the installation convenient for each parts and layout may make starting current to inhibit the volume miniaturization of filter module；It is fallen by arc
The setting at angle 15, it is possible to increase starting current inhibits the heat dissipation area of filter module, to improve heat dissipation effect, also can avoid wedge angle
Security risk is brought, the safety used that starting current inhibits filter module is improved.In other embodiments, the shape of shell 1
Shape size can also be adjusted according to actual needs, not limit uniquely herein.
For convenience of description, two short sides are referred to as the first short side 11 and the second short side 12, two long sides are claimed respectively
For the first long side 13 and the second long side 14.A guide pin 2 in first needle group 21 is known as the first guide pin 211, another guide pin 2 is known as
Second guide pin 212；A guide pin 2 in second needle group 22 is known as third guide pin 221, another guide pin 2 is known as the 4th guide pin 222；
A guide pin 2 in third needle group 23 is known as the 5th guide pin 231, another guide pin 2 is known as the 6th guide pin 232.
Further, also referring to Fig. 3, inhibit the one of filter module as starting current provided in an embodiment of the present invention
Kind of specific implementation mode, three groups of guide pin groups include spaced first needle group 21,22 and of the second needle group successively in a second direction
Two guide pins 2 of third needle group 23, the first needle group 21 are respectively arranged at two arc anglings 15 at a short side both ends, third needle group
23 two guide pins 2 are respectively arranged at two arc anglings 15 at another short side both ends.Specifically, the of the first needle group 21
One guide pin 211 and the second guide pin 212 are located at two arc anglings 15 at 11 both ends of the first short side, and the of third needle group 23
Five guide pins 231 and the 6th guide pin 232 are located at two arc anglings 15 at 12 both ends of the second short side；First guide pin 211,
Three guide pins 221 and the 5th guide pin 231 are located along the same line, and parallel with second direction, the second guide pin 212, the 4th guide pin 222
It is located along the same line with the 6th guide pin 232, and parallel with second direction.First guide pin 211, third guide pin 221 and the 5th are led
Distance of the straightway that needle 231 forms away from the second long side 14 is formed with the second guide pin 212, the 4th guide pin 222 and the 6th guide pin 232
Distance of the straightway away from the first long side 13 it is equal.The straightway of first guide pin 211 and the second guide pin 212 composition is away from the first short side
The straightway that 11 distance is formed with the 5th guide pin 231 and the 6th guide pin 232 is away from equal at a distance from the second short side 12.First guide pin
211 is equal at a distance from the first short side 11 and the second long side 14 respectively；Second guide pin 212 is grown with the first short side 11 and first respectively
The distance on side 13 is equal；5th guide pin 231 is equal at a distance from the second short side 12 and the second long side 14 respectively；6th guide pin 232
It is equal at a distance from the first long side 13 and the second short side 12 respectively.This structure rapidly can accurately pacify each guide pin 2
Dress so that starting current inhibits filter module to be in best working condition, is risen simultaneously to surge current and electromagnetic interference signal
To best inhibiting effect.In other embodiments, the position distribution of each guide pin 2 can also be adjusted according to actual needs,
It does not limit uniquely herein.
Further, also referring to Fig. 3, inhibit the one of filter module as starting current provided in an embodiment of the present invention
Kind of specific implementation mode, the first needle group 21 and the second needle group 22 in a second direction be smaller than the second needle group 22 and third needle
The spacing of group 23 in a second direction.Specifically, the distance between the first guide pin 211 and third guide pin 221 are less than third guide pin
221 and the 5th the distance between guide pin 231 or the distance between the second guide pin 212 and the 4th guide pin 222 be less than the 4th guide pin
222 and the 6th the distance between guide pin 232.This structure, by by the second needle group 22 close to the first needle group 21, far from third needle group
23 setting, can not only enhance the inhibiting effect to surge current, can also be increased to the inhibiting effect of electromagnetic interference signal, it can be achieved that
Starting current inhibits the small delay startup electric current of filter module and high current is applied and a kind of requirement of electromagnetic interference signal.
Further, also referring to Fig. 1 and Fig. 3, inhibit filtering mould as starting current provided in an embodiment of the present invention
A kind of specific implementation mode of block, the first needle group 21 and the second needle group 22 are encircled into first for housing resistance 31 and capacitance 32
Chamber (figure is not marked), the second needle group 22 are encircled into the second chamber for housing diode 33 with third needle group 23 (figure is not marked).
Specifically, the first guide pin 211, the second guide pin 212, third guide pin 221 and the 4th guide pin 222 are encircled into first chamber, resistance 31
It is arranged on printed circuit board 4 with capacitance 32, and in the first chamber；Third guide pin 221, the 4th guide pin the 222, the 5th
Guide pin 231 and the 6th guide pin 232 are encircled into second chamber, and diode 33 is arranged on printed circuit board 4, and is located at second chamber
In room.Resistance 31, capacitance 32 and diode 33 are provided separately by this structure so that the electromagnetic interference of each parts is smaller, improves
The using effect of each parts；And each parts for the power-supply filter being provided separately, help to reinforce radiating, improves and start electricity
Stream inhibits the operating temperature range of filter module, improves generally applicable ability.In other embodiments, resistance 31,32 and of capacitance
Diode 33 can also be arranged at other positions, not limit uniquely herein.
Also referring to Fig. 4 and Fig. 5, starting current inhibits each parameter of filter module as shown in the table.
| A | B | C | D | E | F | G | ΦH |
| 28±1 | 19.5±1 | 10±1 | 14±0.5 | 10±0.5 | 12.3±0.5 | 6±0.5 | 1±0.05 |
Parameter units in above table are millimeter (mm).As seen from the above table, which inhibits filter module full
The foot small form factor requirements of military equipment small size.In other embodiments, starting current inhibits each parameter of filter module
It can for a long time be actually needed and be adjusted, not limit uniquely herein.
The starting current inhibits the making step of filter module as follows：
1, NMOS tube 5, power-supply filter and several guide pins 2 are respectively welded on printed circuit board 4；
2, NMOS tube 5 is bonded in the bottom of shell 1 by heat-conducting glue layer 6；
3, filling glue 7 is injected from the opening of the cavity of shell 1, makes printed circuit board 4, NMOS tube 5 and power-supply filter
It is potted in shell 1.
Also referring to Fig. 2, a kind of electronic equipment provided by the invention, including by protective device (not shown), wherein
Further include that above-mentioned starting current inhibits filter module, this inhibits filter module to be electrically connected by protective device and starting current.
Electronic equipment can be other suitable electronic units.In the electronic equipment, starting current inhibits filter module easy to operate, easily
It is produced in batches in realizing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. anti-vibration, shock proof starting current inhibit filter module, it is characterised in that：Including shell, several guide pins, it is set to institute
The printed circuit board in shell is stated, the NMOS tube of generated surge current when power supply being inhibited to connect is used for after switch and is leading
Power-supply filter after logical for generated electromagnetic interference signal when power supply being inhibited to connect, the NMOS tube and power supply filter
Wave device is electrical connected with the printed circuit board respectively, and the NMOS tube and the power-supply filter are welded in the printing electricity
On the plate of road, there is the shell cavity of a top end opening, one end and the printed circuit board of each guide pin to be weldingly connected,
The other end of each guide pin is stretched out by the opening of the cavity；It further includes for inciting somebody to action that the starting current, which inhibits filter module,
The NMOS tube is adhered to the heat-conducting glue layer of the housing bottom；The printed circuit board, the NMOS tube and power supply filter
Wave device is potted in by filling glue in the cavity of the shell.
2. anti-vibration as described in claim 1, shock proof starting current inhibit filter module, it is characterised in that：The electricity
Source filter includes resistance, capacitance and the diode being set in the one side that the printed circuit board is open towards the cavity, with
And the inductance on the printed circuit board another side；In the printed circuit board be equipped with for be electrically connected the resistance,
The circuit of the capacitance, the diode and the inductance, the resistance, the capacitance, the diode are spaced setting two-by-two,
The inductance and the NMOS tube are located on the same side of the printed circuit board, and the inductance and the NMOS tube interval
Setting.
3. anti-vibration as claimed in claim 2, shock proof starting current inhibit filter module, it is characterised in that：The electricity
The spacing being smaller than between the capacitance and the diode between resistance and the capacitance.
4. anti-vibration as claimed in claim 2, shock proof starting current inhibit filter module, it is characterised in that：The electricity
Resistance and the capacitance are respectively positioned on the surface of the NMOS tube, and the diode is located at the top of the inductance, and two pole
Pipe is stretched out along one end part of the inductance.
5. anti-vibration as claimed in claim 2, shock proof starting current inhibit filter module, it is characterised in that：The shell
Body is rectangular, and there is the shell first direction and the second direction vertical with the first direction, the starting current to inhibit
Filter module is respectively parallel to the first direction and in this second direction spaced guide pin group including three groups, every group
The guide pin group includes spaced two guide pins, and between two guide pins in guide pin group described in every group between
Away from equal.
6. anti-vibration as claimed in claim 5, shock proof starting current inhibit filter module, it is characterised in that：The shell
The top surface of body includes two short sides and with the second direction parallel two long sides parallel with the first direction, each described
Short side and the arc-shaped chamfering structure in the junction of the corresponding long side.
7. anti-vibration as claimed in claim 6, shock proof starting current inhibit filter module, it is characterised in that：Three groups of institutes
It includes along the second direction successively spaced first needle group, the second needle group and third needle group described first to state guide pin group
Two guide pins of needle group are respectively arranged at two arc anglings at the short side both ends, and the two of the third needle group
Guide pin described in root is respectively arranged at two arc anglings at another short side both ends.
8. anti-vibration as claimed in claim 7, shock proof starting current inhibit filter module, it is characterised in that：Described
One needle group and the second needle group in this second direction be smaller than the second needle group with the third needle group in institute
State the spacing in second direction.
9. anti-vibration as claimed in claim 7, shock proof starting current inhibit filter module, it is characterised in that：Described
One needle group and the second needle group are encircled into the first chamber for housing the resistance and the capacitance, the second needle group with
The third needle group is encircled into the second chamber for housing the diode.
10. electronic equipment, including by protection circuit module, it is characterised in that：Further include such as claim 1-9 any one of them
Anti-vibration, shock proof starting current inhibit filter module, the starting current inhibit filter module with it is described by protection circuit
Module is electrical connected.
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| CN201810687969.9A CN108599541A (en) | 2018-06-28 | 2018-06-28 | Anti-vibration, shock proof starting current inhibit filter module and electronic equipment |
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| CN201810687969.9A CN108599541A (en) | 2018-06-28 | 2018-06-28 | Anti-vibration, shock proof starting current inhibit filter module and electronic equipment |
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