CN207082436U - A kind of noinductive capacitor - Google Patents
A kind of noinductive capacitor Download PDFInfo
- Publication number
- CN207082436U CN207082436U CN201721032638.9U CN201721032638U CN207082436U CN 207082436 U CN207082436 U CN 207082436U CN 201721032638 U CN201721032638 U CN 201721032638U CN 207082436 U CN207082436 U CN 207082436U
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- China
- Prior art keywords
- shell
- capacitor
- lateral wall
- cover plate
- pipe body
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Abstract
A kind of noinductive capacitor, including barrel-shaped shell, the capacitor core group positioned at enclosure, cover plate are the utility model is related to, capacitor core group includes six cylindric capacitor cores, and the bottom of capacitor core group is provided with seven apertures in the human head positioning sleeve；The lateral wall of shell is also arranged with multiple circular fins, and the shell bottom center of shell is provided with the coniform groove to shell inner recess；Support tube is provided between seven apertures in the human head positioning sleeve and the shell bottom of shell, the inside of shell is also filled with epoxyn, the bouncing plate being engaged with the inner chamber of shell is provided between the top surface of epoxyn and cover plate, the center of bouncing plate is provided with " ten " shape crackle；Through hole is provided with cover plate.The noinductive capacitor coordinates the through hole on cover plate that the internal pressure of shell is under explosion limit all the time using bouncing plate, and the side wall of shell and shell bottom are reinforced, and explosion-proof effect is good, good heat dissipation effect, and service life is high.
Description
Technical field
A kind of noinductive capacitor is the utility model is related to, belongs to capacitor technology utilization.
Background technology
Capacitor, it is electric capacity that generally referred to as it, which accommodates the ability of electric charge, is represented with letter C.Capacitor, it is a kind of receiving electricity
The device of lotus.Capacitor is one of electronic component largely used in electronic equipment, the separated by direct communication being widely used in circuit,
Coupling, bypass, filtering, resonant tank, energy conversion, control etc..
Wherein, metallized film capacitor is currently used capacitor.Typically by barrel-shaped shell, capacitor body,
Cover plate, leading-out terminal etc. are formed, and in order to ensure that leaky does not occur in use for capacitor, capacitor body is arranged on
The center of shell, fills epoxyn between capacitor body and shell, and capacitor is with epoxyn
It is formulated by epoxy resin base-material, curing agent, diluent, accelerator and heat filling, mainly avoids capacitor body from sending out
Raw electric leakage, while heat caused by can also capacitor body be run is timely transmitted on shell and outwardly distributed.
And capacitor is in the process of running, influenceed by environment temperature and behaviour in service etc., overvoltage, excessively stream or the mistake of capacitor
Wen Jiehui causes the metallized film in capacitor body that partial breakdown generation gas occurs, and heat caused by moment makes gas swollen
It is swollen, capacitor bulge, or even blast can be caused.Existing capacitor is additionally arranged at the bottom explosion-proof to meet requirement of explosion proof in cover plate
Block, the structure of explosion-proof block is general as disclosed in the utility model patent of Application No. 201420490183.5, works as electricity
When gases at high pressure caused by holding element partial breakdown break through cover plate, explosion-proof block can avoid other circuit components outside cover plate
Break down or damage, reduce loss.But the main function of explosion-proof block is one " boss " in fact, although being carried out to cover plate
Protection, the intact of other circuit components at cover plate is ensure that, but when the pressure of capacitor internal reaches the limit of shell,
The side wall of shell or shell bottom produce electronic component that metal fragment is easy to make surrounding in the moment of explosion by quick-fried easily by explosion
Fried influence or short circuit or damage, whole circuit is caused to be paralysed.
Utility model content
The utility model is in view of the deficienciess of the prior art, provide a kind of noinductive capacitor, concrete technical scheme is such as
Under：
A kind of noinductive capacitor, including barrel-shaped shell, the capacitor core group positioned at enclosure, cover plate, the shell
Lower end closed and shell open upper end, the cover plate is fixedly connected with the upper end of shell；The capacitor core group includes six
Individual cylindric capacitor core, the bottom of the capacitor core group are provided with seven apertures in the human head positioning sleeve；The seven apertures in the human head positioning sleeve includes the six roots of sensation
Pipe body, six roots of sensation pipe body is formed a circle and the lateral wall of adjacent pipe body is mutually circumscribed, and six roots of sensation pipe body, which is surrounded by, to be located at
The medium pore of centre, the pipe body are set in the outside of capacitor core；The lateral wall of the shell is also arranged with multiple annular shapes
Fin, the inner ring of fin are fixedly connected with the lateral wall of shell, and the shell bottom center of the shell is provided with to shell inner recess
Coniform groove；Support tube is provided between the shell bottom of the seven apertures in the human head positioning sleeve and shell, support tube is set in the outer of groove
Portion, the support tube are cut in the lateral wall of support tube, the lateral wall of the pipe body through the hole wall of medium pore and medium pore outside
It is tangent with the madial wall of shell；The lateral wall of the support tube is also arranged with circular ring washer, the inner ring of ring washer and support tube
Lateral wall is fixedly connected, and the ring washer is arranged on the lower section of pipe body；It is gluing that the inside of the shell is also filled with epoxy resin
Agent, the top surface of epoxyn are less than the upper of shell higher than the upper surface of capacitor core and the top surface of epoxyn
End face, the bouncing plate being engaged with the inner chamber of shell, elastic force are provided between the top surface and cover plate of the epoxyn
The center of piece is provided with " ten " shape crackle；Through hole is provided with the cover plate, through hole is arranged on the surface of crackle.
As the improvement of above-mentioned technical proposal, the shell bottom of the shell is additionally provided with the annular groove to shell inner recess,
The annular groove is arranged on the outside of groove.
As the improvement of above-mentioned technical proposal, matching somebody with somebody between the inner chamber of the bouncing plate and shell is combined into interference fit.
Noinductive capacitor described in the utility model is using the side wall of fin stiffened shell simultaneously using annular groove, into shell
The shell bottom of the coniform groove stiffened shell of portion's depression, the side wall of shell, the shell bottom of shell are avoided by explosion；Matched somebody with somebody using bouncing plate
Through hole on closing lid plate causes the internal pressure of shell to be in all the time under explosion limit, and explosion-proof effect significantly improves.Meanwhile should
The radiating effect of noinductive capacitor is excellent, avoids the internal temperature of the noinductive capacitor too high, and the noinductive capacitor uses the longevity
Life improves.
Brief description of the drawings
Fig. 1 is noinductive capacitor structural representation described in the utility model；
Fig. 2 is shell mechanism schematic diagram described in the utility model；
Fig. 3 is the shell bottom schematic diagram of shell described in the utility model（Look up state）；
Fig. 4 is shell described in the utility model, seven apertures in the human head positioning sleeve, support tube interconnection schematic diagram；
Fig. 5 is seven apertures in the human head locating sleeve structure schematic diagram described in the utility model；
Fig. 6 is bouncing plate structural representation described in the utility model.
Embodiment
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 explaining
The utility model, it is not used to limit the utility model.
As shown in Fig. 1 ~ 6, the noinductive capacitor, including barrel-shaped shell 1, the capacitor core group inside shell 1,
Cover plate 3, the lower end closed of the shell 1 and the open upper end of shell 1, the cover plate 3 are fixedly connected with the upper end of shell 1；Institute
Stating capacitor core group includes six cylindric capacitor cores 21, and the bottom of the capacitor core group is provided with seven apertures in the human head positioning sleeve 5；Institute
Stating seven apertures in the human head positioning sleeve 5 includes six roots of sensation pipe body 51, and six roots of sensation pipe body 51 forms a circle and the lateral wall of adjacent pipe body 51 is mutual
Circumscribed, six roots of sensation pipe body 51 is surrounded by centrally located medium pore 52, and the pipe body 51 is set in the outside of capacitor core 21；
The lateral wall of the shell 1 is also arranged with multiple circular fins 11, and the inner ring of fin 11 is fixed with the lateral wall of shell 1 to be connected
Connect, the shell bottom center of the shell 1 is provided with the coniform groove 13 to the inner recess of shell 1；The seven apertures in the human head positioning sleeve 5 with it is outer
Support tube 6 is provided between the shell bottom of shell 1, support tube 6 is set in the outside of groove 13, and the support tube 6 passes through medium pore 52
And the lateral wall of support tube 6, the lateral wall of the pipe body 51 and the madial wall phase of shell 1 are cut in outside the hole wall of medium pore 52
Cut；The lateral wall of the support tube 6 is also arranged with circular ring washer 61, and the lateral wall of the inner ring and support tube 6 of ring washer 61 is fixed
Connection, the ring washer 61 are arranged on the lower section of pipe body 51；The inside of the shell 1 is also filled with epoxyn 4, ring
The top surface of oxygen resin adhesive 4 is less than the upper of shell 1 higher than the upper surface of capacitor core 21 and the top surface of epoxyn 4
End face, the bouncing plate 7 being engaged with the inner chamber of shell 1 is provided between the top surface and cover plate 3 of the epoxyn 4,
The center of bouncing plate 7 is provided with " ten " shape crackle 71；Through hole 31 is provided with the cover plate 3, through hole 31 is arranged on crackle 71
Surface.
For shell 1 using conventional aluminum hull, fin 11 and shell 1 are made of identical materials.It can be adopted between fin 11 and shell 1
With being welded and fixed.Not only energization enough improves the radiating effect of shell 1 to fin 11 so that is not easy to gather substantial amounts of heat inside shell 1
Amount, the noinductive capacitor cause blast odds further to reduce because of overheat；And fin 11 is the annular shape of closing, this
So that fin 11 also has the effect of reinforcement, the mechanical strength of the lateral wall of shell 1 is significantly improved, is causing shell 1 because of overheat
When inside produces gases at high pressure, the presence of fin 11 can avoid the side wall of shell 1 that oxygen blast cyanidation occurs, and effectively avoid shell 1
Other electronic components of surrounding are involved.
The seven apertures in the human head positioning sleeve 5 is formed a circle by six roots of sensation pipe body 51 and the mutually circumscribed structure of the lateral wall of adjacent pipe body 51
Into the structure of plum blossom-shaped, therefore, it is seven holes that the hole in six centers of pipe body 51, which is added medium pore 52 and had altogether,.Just the six roots of sensation is justified
Body 51, which forms a circle, can surround medium pore 52, and it is empty that this enables the seven apertures in the human head positioning sleeve 5 to effectively utilize the inside of shell 1
Between, ensure that capacitor core group is stably fixed by seven apertures in the human head positioning sleeve 5.The preparation method of seven apertures in the human head positioning sleeve 5 is simple, can justify the six roots of sensation
Body 51 forms a circle and is fixedly connected between the lateral wall of adjacent pipe body 51 by glue；Can also should using extruding machine
5 extrusion moulding of seven apertures in the human head positioning sleeve.Each capacitor core 21 is just injected in the corresponding inner chamber of pipe body 51, the circle
Body 51 entangles the bottom of capacitor core 21, can be consolidated between pipe body 51 and capacitor core 21 by the way of interference fit
It is fixed.In seven apertures in the human head positioning sleeve 5, the lateral wall of six roots of sensation pipe body 51 can be tangent with the lateral wall of support tube 6, and six pipes
The lateral wall of body 51 can also be tangent with the madial wall of shell 1, therefore, in the presence of seven apertures in the human head positioning sleeve 5, capacitor core group quilt
Seven apertures in the human head positioning sleeve 5 is fixed on the inside of shell 1, also causes between capacitor core 21 and the lateral wall of support tube 6, adjacent electric capacity
Larger gap be present between device core 21 and between the madial wall of capacitor core 21 and shell 1, this is advantageous to epoxide-resin glue
Stick 4 is fully wrapped around by six capacitor cores 21, not only avoids capacitor core 21 from leaking electricity, and also help capacitor core
21 are operationally radiated.Wherein, because pipe body 51 is generally rubber or plastics are made, but the lateral wall of pipe body 51
Contact area between the madial wall of shell 1 is small, therefore radiating interference of the seven apertures in the human head positioning sleeve 5 to capacitor core group is very small.
Wherein, support tube 6 also has the function that to support seven apertures in the human head positioning sleeve 5, ensures that six capacitor cores 21 are symmetrically distributed in
The surrounding of support tube 6, six capacitor cores 21 are evenly distributed inside shell 1 so that mutually dry between six capacitor cores 21
Disturb less, this is advantageous to the noinductive capacitor and stably run；Seven apertures in the human head positioning sleeve 5 is fixed on support tube 6, in circular ring washer
In the presence of 61, seven apertures in the human head positioning sleeve 5 is blocked by circular ring washer 61, can effectively ensure that lower end and the shell 1 of capacitor core 21
Shell bottom between have enough intervals, and circular ring washer 61 can also stop epoxide-resin glue of the capacitor core 21 in liquid
Fallen naturally in stick 4；This six capacitor core 21 for be fixed by seven apertures in the human head positioning sleeve 5 is in hanging shape inside shell 1
State, the epoxyn 4 that this is advantageous to perfusion is fully wrapped around by six capacitor cores 21, avoids six capacitor cores 21 from sending out
Raw electric leakage；Simultaneously as neither one capacitor core 21 is located at the centre of shell 1 so that the centre of shell 1 is not easy to assemble
Excessive heat.Six capacitor cores 21 can as requested or serial or parallel connection, six capacitor cores 21 relative to one substantially
For long-pending capacitor body, the contact area between six capacitor cores 21 and epoxyn 4 is bigger, its effect that radiates
Fruit is more excellent.The radiating effect of the noinductive capacitor is excellent, can avoid because excess temperature causes metallized film that partial breakdown occurs, should
The probability that bulge blast occurs for noinductive capacitor significantly reduces.
Because the top surface of epoxyn 4 is higher than the upper surface of capacitor core 21 and the top of epoxyn 4
Face is less than the upper surface of shell 1 so that enough cavitys be present between the top surface and cover plate 3 of epoxyn 4 to place
Rubber can be used to be made for bouncing plate 7, bouncing plate 7；When long-play in environment of the capacitor core 21 in overvoltage, excessively stream or excess temperature
Capacitor core 21 is caused to occur partial breakdown, moment produces substantial amounts of high-temperature gas, and the gas is from the epoxide-resin glue after solidification
Overflowed in stick 4 and then be accumulated into high temperature and high pressure gas, because the side wall of shell 1 is reinforced by fin 11, the shell bottom center of shell 1
Due to the presence of the coniform groove 13 to the inner recess of shell 1, the usable top of groove 13 is the conehead of sphere to shell 1
Shell bottom carries out cold rolling and is made, and this make it that the intermediate region at the shell bottom of shell 1 is a structure to arch upward, and the structure can strengthen shell
The mechanical strength at 1 shell bottom, the shell bottom of shell 1 are unlikely to deform；Coniform groove 13 also has the effect of shunting, reduces in shell 1
Impact of the high temperature and high pressure gas in portion to the shell bottom middle section of shell 1；Also improve simultaneously the shell bottom of shell 1 and outside air it
Between contact area, be advantageous to improve radiating effect；The centre of high temperature and high pressure gas inside shell 1 in bouncing plate 7
Break through and then outwardly lead off at through hole 31 at " ten " shape crackle 71, avoid cover plate 3 that oxygen blast cyanidation occurs；Therefore, elastic force
Under the coordinated of through hole 31 on crackle 71 and cover plate 3 on piece so that the internal pressure of shell 1 is in explosion limit all the time
Under, the explosion-proof effect of the noinductive capacitor is good.Wherein, because bouncing plate 7 is flexible, crackle 71 can in nature
Prevent dust from entering the inside of shell 1；When bouncing plate 7 builds up below substantial amounts of high temperature and high pressure gas, high temperature and high pressure gas
It can be overflowed from crackle 71 and crackle 71 is expanded into the bigger breach that is open, the high temperature for contributing to bouncing plate 7 to build up below simultaneously
Gases at high pressure carry out pressure release, led off.Further, it is combined into interference fit when matching somebody with somebody between the bouncing plate 7 and the inner chamber of shell 1
When, this causes bouncing plate 7 itself to be in by " compression " state, and this, which promotes the line on crackle 71 to stitch, becomes more small so that water droplet
It is not easily accessible the inside of shell 1.
Further, if the shell floor space of shell 1 is excessive, then be additionally provided with the shell bottom of the shell 1 to shell 1
The annular groove 12 of inner recess, the annular groove 12 are arranged on the outside of groove 13.Annular groove 12 has further stiffened shell 1
Shell bottom effect.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of noinductive capacitor, including barrel-shaped shell（1）, positioned at shell（1）The capacitor core group of inside, cover plate（3）, institute
State shell（1）Lower end closed and shell（1）Open upper end, the cover plate（3）With shell（1）Upper end be fixedly connected, its
It is characterised by：The capacitor core group includes six cylindric capacitor cores（21）, the bottom of the capacitor core group is provided with
Seven apertures in the human head positioning sleeve（5）；The seven apertures in the human head positioning sleeve（5）Including six roots of sensation pipe body（51）, six roots of sensation pipe body（51）Form a circle and phase
Adjacent pipe body（51）Lateral wall it is mutually circumscribed, six roots of sensation pipe body（51）It is surrounded by centrally located medium pore（52）, the circle
Body（51）It is set in capacitor core（21）Outside；The shell（1）Lateral wall be also arranged with multiple circular fins
（11）, fin（11）Inner ring and shell（1）Lateral wall be fixedly connected, the shell（1）Shell bottom center be provided with outwards
Shell（1）The coniform groove of inner recess（13）；The seven apertures in the human head positioning sleeve（5）With shell（1）Shell bottom between be provided with support
Pipe（6）, support tube（6）It is set in groove（13）Outside, the support tube（6）Through medium pore（52）And medium pore（52）'s
Support tube is cut in outside hole wall（6）Lateral wall, the pipe body（51）Lateral wall and shell（1）Madial wall it is tangent；It is described
Support tube（6）Lateral wall be also arranged with circular ring washer（61）, ring washer（61）Inner ring and support tube（6）Lateral wall fix
Connection, the ring washer（61）It is arranged on pipe body（51）Lower section；The shell（1）To be also filled with epoxy resin gluing for inside
Agent（4）, epoxyn（4）Top surface be higher than capacitor core（21）Upper surface and epoxyn（4）Top
Face is less than shell（1）Upper surface, the epoxyn（4）Top surface and cover plate（3）Between be provided with and shell（1）
The bouncing plate that is engaged of inner chamber（7）, bouncing plate（7）Center be provided with " ten " shape crackle（71）；The cover plate（3）On set
It is equipped with through hole（31）, through hole（31）It is arranged on crackle（71）Surface.
A kind of 2. noinductive capacitor according to claim 1, it is characterised in that：The shell（1）Shell bottom be additionally provided with
To shell（1）The annular groove of inner recess（12）, the annular groove（12）It is arranged on groove（13）Outside.
A kind of 3. noinductive capacitor according to claim 1, it is characterised in that：The bouncing plate（7）With shell（1）It is interior
Matching somebody with somebody between chamber is combined into interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032638.9U CN207082436U (en) | 2017-08-17 | 2017-08-17 | A kind of noinductive capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032638.9U CN207082436U (en) | 2017-08-17 | 2017-08-17 | A kind of noinductive capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082436U true CN207082436U (en) | 2018-03-09 |
Family
ID=61420510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721032638.9U Expired - Fee Related CN207082436U (en) | 2017-08-17 | 2017-08-17 | A kind of noinductive capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082436U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616322A (en) * | 2018-11-28 | 2019-04-12 | 铜陵市新洲电子科技有限责任公司 | A kind of high-speed rail locomotive dedicated capacitor |
| CN110767458A (en) * | 2019-10-30 | 2020-02-07 | 江苏图腾电气科技有限公司 | Self-healing low-voltage parallel capacitor |
| CN113488338A (en) * | 2020-03-17 | 2021-10-08 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
-
2017
- 2017-08-17 CN CN201721032638.9U patent/CN207082436U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616322A (en) * | 2018-11-28 | 2019-04-12 | 铜陵市新洲电子科技有限责任公司 | A kind of high-speed rail locomotive dedicated capacitor |
| CN110767458A (en) * | 2019-10-30 | 2020-02-07 | 江苏图腾电气科技有限公司 | Self-healing low-voltage parallel capacitor |
| CN113488338A (en) * | 2020-03-17 | 2021-10-08 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
| CN113488338B (en) * | 2020-03-17 | 2023-03-03 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20190817 |