CN108735472A - A kind of mutual inductor of anti-vibrating and impact - Google Patents
A kind of mutual inductor of anti-vibrating and impact Download PDFInfo
- Publication number
- CN108735472A CN108735472A CN201810496070.9A CN201810496070A CN108735472A CN 108735472 A CN108735472 A CN 108735472A CN 201810496070 A CN201810496070 A CN 201810496070A CN 108735472 A CN108735472 A CN 108735472A
- Authority
- CN
- China
- Prior art keywords
- skeleton
- mutual inductor
- shell
- impact
- vibrating
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F2027/297—Terminals; Tapping arrangements for signal inductances with pin-like terminal to be inserted in hole of printed path
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of mutual inductors of anti-vibrating and impact, including shell, silicon steel sheet group, coil, skeleton, the primary lead for being located on upper skeleton and extending upward shell, the secondary lead for being located on lower skeleton and extending downwardly out shell, elastic needle is made as the signal pins of mutual inductor in secondary lead, increase pin effective length, reduces pin rigidity；To coherent signal pad on isolation transformer and PCB, prevent the vibratory impulse power of mutual inductor from damaging relevant tracks on pad and pcb board.In addition the flexible glue embedding in transformer casing, to isolation transformer internal element and shell, shell is fixedly connected with pcb board increase, effectively reduces the Oscillation Amplitude of mutual inductor internal element, prevents vibratory impulse from mutual inductor ontology being caused to damage.
Description
Technical field
The invention belongs to transformer technical field, it is related to a kind of pcb board and is welded mutual inductor anti-vibrating and impact structure.
Background technology
As the component for measuring voltage and current, mutual inductor is widely used in instrument measurement, equipment protection, automatically controls
Equal fields.The low power mutual inductor in part is usually directly welded on pcb board part.After being welded on pcb board, the pin of mutual inductor with
Pcb board pad is connected as one by scolding tin；Mutual inductor quality is big, and inertia is big, and when impact vibrated, mutual inductor pulls PCB
Pad, generates displacement, and the displacement of pad easily breaks pcb board cabling, causes circuit board damage.In addition, mutual inductor plastic shell with
Gap between the internal elements such as skeleton, silicon steel sheet, coil is generally filled with epoxide-resin glue sealing, hard after this kind of fluid sealant solidification
Spend it is larger, can not buffering vibration impact to case body of internal element when occurring, be easy to cause plastic shell breakage, colloid is opened
It splits.
Invention content
The present invention proposes a kind of mutual inductor of anti-vibrating and impact, in mutual inductor impact vibrated, effectively prevent mutual inductance
Device damages circuit board, prevents damaged, colloid cracking of transformer casing caused by vibratory impulse etc..
To achieve the goals above, the present invention uses following technical scheme：
A kind of mutual inductor of anti-vibrating and impact, including shell, silicon steel sheet group, coil, skeleton；The silicon steel sheet group, coil,
Skeleton is contained in shell, which is characterized in that the skeleton includes upper skeleton and lower skeleton, and coil is located at upper skeleton and lower skeleton
Between, upper skeleton and lower skeleton are respectively positioned in the hollow space of silicon steel sheet group；Further include being located on upper skeleton and upwardly extending
The primary lead for going out shell, the secondary lead for being located on lower skeleton and extending downwardly out shell；The secondary lead is extended
The part of shell is elastic needle；The housing interior volume passes through flexible glue embedding.
Further, the elastic needle part of the secondary lead is helical form, and bottom forms pin-like to be inserted into printing
Circuit board.
Further, it is additionally provided with the fixed pin for being fixed on lower skeleton and extending downwardly；The transformer casing is equipped with
The threaded hole extended downwardly and the screw in threaded hole with printed circuit board being connected.
Further, the flexible glue is flexible polyurethane.
Further, the upper skeleton is equipped with the locating slot of the primary lead of positioning, and lower skeleton is equipped with positioning secondary lead
Locating slot.
The beneficial effects of the invention are as follows：
1) by the way that the welding portion for the secondary lead welded with pcb board is arranged to elastic needle shape, increase pin has
Length is imitated, pin rigidity is reduced, in mutual inductor impact process vibrated, pin generates deformation so that mutual inductor is shaken
The displacement that dynamic impact generates, is no longer transferred to PCB pads, and the impact force that mutual inductor generates PCB pads, protection letter is greatly decreased
Number pin pad.
2) filling flexible glue between internal element can guarantee the insulating requirements of internal element after polyurethane sealant solidification,
And there is good elasticity.When mutual inductor impact vibrated, transformer casing and internal element there are different amplitudes,
By flexible glue damping action, Oscillation Amplitude is limited, protects internal element, improves mutual inductor device ontology anti-vibrating and impact performance.
And the welding portion of secondary lead is arranged to elastic needle shape bronze drum reduction mutual inductor and is given a shock and can effectively prevent shaking
Encapsulating cracking and component wear inside mutual inductor caused by dynamic impact.
3) it is not required to additionally increase cushion pad between mutual inductor and PCB, does not influence the Welder between mutual inductor and PCB
Skill.
4) the original production technology of mutual inductor is not influenced.
Description of the drawings
Fig. 1 is stereogram when mutual inductor of the invention does not install shell, illustrates the internal structure of mutual inductor.
Fig. 2 is the stereogram after mutual inductor installation shell of the present invention.
Fig. 3 is the stereogram that mutual inductor shown in Fig. 2 is observed bottom-up.
Specific implementation mode
The following further describes the present invention with reference to the drawings, and following instance is only used for more clearly illustrating the technology of the present invention
Scheme, and not intended to limit the protection scope of the present invention.
It is as shown in Figure 1 to Figure 3 a kind of specific technical solution of the present invention.As shown in the figure is the mutual inductance that is welded of top inlet wire
Device.Mutual inductor structure include skeleton, coil 2, silicon steel sheet group 3, primary lead 4, secondary lead 5, fixed pin 6, plastic shell 7,
The nut 8 inlayed in shell.
As shown in Figure 1 to Figure 3, the skeleton includes upper skeleton 1 and lower skeleton 9, and coil 2 is located at upper skeleton 1 and lower skeleton 9
Between, upper skeleton 1 and lower skeleton 9 are respectively positioned in the hollow space of silicon steel sheet group 3.Further include being located on upper skeleton 1 simultaneously upwards
The primary lead 4 for extending shell, the secondary lead for being located on lower skeleton 9 and extending downwardly out shell 75；The secondary is drawn
The part that line 5 extends shell 7 is elastic needle.Transformer secondary lead 5 (signal pins) coiling of the present invention is spiral to be replaced
For staight needle structural shape；Bottom forms pin-like to be inserted into printed circuit board (PCB).Secondary lead 5 (signal pins) designs
It is spiral, become like the elastic element of spring.Other forming shapes can also be used, pin effective length, drop are increased
Low pin rigidity.To coherent signal pad on isolation transformer and PCB, the vibratory impulse power of mutual inductor is effectively prevent to damage weldering
Relevant tracks on disk and pcb board.
The fixed pin 6 for being fixed on lower skeleton and extending downwardly is additionally provided on the mutual inductor.Fixed pin 6 can make skeleton with
Pcb board bonding strength will not be reduced because signal pins change.The transformer casing 7 is equipped with the threaded hole extended downwardly
(i.e. nut 8) and screw in threaded hole with printed circuit board being connected.6 overstriking of fixed pin enhances skeleton and pcb board
Bonding strength.Screw increases the mechanical connection of PCB and transformer casing 7；The structure of other elements inside mutual inductor is not changed, mutually
The larger epoxy resin of hardness is substituted using polyurethane or other flexible glues when sensor embedding.Flexible glue fills member inside mutual inductor
Gap between part can form effective buffer layer, to avoid vibratory impulse to mutual inductor between internal element and shell
The injury of internal element and plastic shell.The upper skeleton 1 is equipped with the locating slot 10 of positioning primary lead 4, and lower skeleton 9 is equipped with fixed
The locating slot 11 of position secondary lead 5, positioning when making primary lead 4 and secondary lead 5 install and using when prevent because
Vibration deviates.
The above is only the basic principles and main features of the present invention, to those of ordinary skill in the art,
Under the premise of not departing from spirit and scope, several improvements and modifications can also be made, these are improved and profit
Decorations also should be regarded as protection scope of the present invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (5)
1. a kind of mutual inductor of anti-vibrating and impact, including shell, silicon steel sheet group, coil, skeleton；The silicon steel sheet group, coil, bone
Frame is contained in shell, which is characterized in that the skeleton includes upper skeleton and lower skeleton, coil be located at upper skeleton and lower skeleton it
Between, upper skeleton and lower skeleton are respectively positioned in the hollow space of silicon steel sheet group；Further include being located on upper skeleton and extending upward
The primary lead of shell, the secondary lead for being located on lower skeleton and extending downwardly out shell；The secondary lead is extended outer
The part of shell is elastic needle；The housing interior volume passes through flexible glue embedding.
2. the mutual inductor of anti-vibrating and impact as described in claim 1, which is characterized in that the elastic needle part of the secondary lead
For helical form, bottom forms pin-like to be inserted into printed circuit board.
3. the mutual inductor of anti-vibrating and impact as claimed in claim 2, which is characterized in that be additionally provided be fixed on lower skeleton and to
The fixed pin of lower extension；The transformer casing be equipped with the threaded hole that extends downwardly and screw in threaded hole to
Printed circuit board connects.
4. the mutual inductor of anti-vibrating and impact as claimed in claim 3, which is characterized in that the flexible glue is flexible polyurethane.
5. the mutual inductor of anti-vibrating and impact as claimed in claim 3, which is characterized in that the upper skeleton is equipped with positioning primary and draws
The locating slot of line, lower skeleton are equipped with the locating slot of positioning secondary lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496070.9A CN108735472A (en) | 2018-05-22 | 2018-05-22 | A kind of mutual inductor of anti-vibrating and impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496070.9A CN108735472A (en) | 2018-05-22 | 2018-05-22 | A kind of mutual inductor of anti-vibrating and impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108735472A true CN108735472A (en) | 2018-11-02 |
Family
ID=63937771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810496070.9A Pending CN108735472A (en) | 2018-05-22 | 2018-05-22 | A kind of mutual inductor of anti-vibrating and impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108735472A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854143U (en) * | 2010-11-12 | 2011-06-01 | 意拉德电子（东莞）有限公司 | Device for connecting lead wire of motor control board |
| CN204596607U (en) * | 2015-01-13 | 2015-08-26 | 北京新创四方电子有限公司 | Flat printed substrate welded type power transformer |
| CN205080989U (en) * | 2015-11-05 | 2016-03-09 | 温岭阿凡达机电有限公司 | Transformer |
| CN205428630U (en) * | 2016-02-17 | 2016-08-03 | 德州信平电子有限公司 | Embedment parcel formula switching mode power supply transformer |
| CN206558307U (en) * | 2017-01-21 | 2017-10-13 | 北京核原科电电气有限公司 | A kind of wiring mechanism of transformer |
-
2018
- 2018-05-22 CN CN201810496070.9A patent/CN108735472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854143U (en) * | 2010-11-12 | 2011-06-01 | 意拉德电子（东莞）有限公司 | Device for connecting lead wire of motor control board |
| CN204596607U (en) * | 2015-01-13 | 2015-08-26 | 北京新创四方电子有限公司 | Flat printed substrate welded type power transformer |
| CN205080989U (en) * | 2015-11-05 | 2016-03-09 | 温岭阿凡达机电有限公司 | Transformer |
| CN205428630U (en) * | 2016-02-17 | 2016-08-03 | 德州信平电子有限公司 | Embedment parcel formula switching mode power supply transformer |
| CN206558307U (en) * | 2017-01-21 | 2017-10-13 | 北京核原科电电气有限公司 | A kind of wiring mechanism of transformer |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
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| RJ01 | Rejection of invention patent application after publication |