CN205943757U - Explosion -proof capacitor - Google Patents
Explosion -proof capacitor Download PDFInfo
- Publication number
- CN205943757U CN205943757U CN201620851812.1U CN201620851812U CN205943757U CN 205943757 U CN205943757 U CN 205943757U CN 201620851812 U CN201620851812 U CN 201620851812U CN 205943757 U CN205943757 U CN 205943757U
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- capacitor
- end cap
- tubular shell
- lid
- tube
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Abstract
The utility model discloses an explosion -proof capacitor belongs to condenser explosion -proof technique field, establish the end cover in tube -shape casing nozzle department including tube -shape casing and lid, the cyclic annular border lid of end cover pastes on the external turn -ups of tube -shape casing nozzle department and the connection is converted into in both undercuts, the heavy tube -shape casing nozzle of arranging in of lid depressed part that is located cyclic annular border area of end cover, lid depressed part and cyclic annular border between have transition wall and a tube -shape casing nozzle department the inner wall correspond and arrange that the support dish has been arranged to the inboard face of the lid depressed part on the end cover, arranges binding post on the outside face of lid depressed part, binding post and interior electric connection of condenser terminal strip contact of tube -shape casing. The utility model discloses the displacement is located almost not have by the border of well end cover and the nozzle of tube -shape casing, and the support dish does not have the displacement, and the terminal strip separated in casing intra cavitary pressure messenger lid depressed part upwards swelled and drives binding post upward movement messenger binding post and tube -shape casing, made the condenser cut off the power supply.
Description
Technical field
The utility model is related to capacitor from explosion technical field, particularly to one kind explosion prevention capacitor used in household electrical appliances
Device.
Background technology
Capacitor is a kind of device accommodating electric charge, when aging or damage are occurred in use due to capacitor, electricity
Air pressure within container casing and temperature can quickly increase, and when reaching uniform temperature, capacitor can explode.Therefore, electricity
The explosion-proof of container is an important task.
The explosion-proof principle that used in household electrical appliances, capacitor adopts at present is usually mechanical explosion principle：It is by manually justifying
The terminal of copper rod carries out soldering with the lead of capacitor body and is connected, then will prop up attic base and be arranged on terminal, works as condenser voltage
Too high or when heating is excessive, internal gas expand and cause shell dilatancy, until be arranged on the metal wire of inside the shell breaking, from
And reach open-circuit condition, to reach the purpose preventing capacitor from blast occurring.
But, existing capacitor from explosion process has the obvious disadvantage that：First, the explosion-proof sensitivity of capacitor is relatively low.
Second, not only material cost height is connected using this soldering, and produces a large amount of smog during scolding tin, not environmentally.3rd, by
Very big in the welding difficulty of copper rod, easy rosin joint, when capacitor works, at solder joint, often produce overheated, solder joint disconnection showing
As making capacitor be easily damaged, the low reliability being greatly reduced capacitor use of the efficiency of welding simultaneously.4th, in weldering
When tin explosion-proof dynamics also just secure it is impossible to according to using scene difference the explosion-proof dynamics of capacitor is adjusted flexibly.
5th, because circle copper rod is connected by soldering with the lead of capacitor body, in capacitor failure, capacitor body
Lead is difficult to disconnect, and leads to explosion-protection equipment insufficient sensitivity it is impossible to really play explosion-proof.
Utility model content
The purpose of this utility model is to provide a kind of noinductive capacitor, can with solve that existing noinductive capacitor uses
By the problem that property is low, explosion-proof sensitivity is low.
For realizing object above, the technical solution adopted in the utility model is：There is provided a kind of noinductive capacitor, including cylinder
Shape housing is located at the end cap of tubular shell tube port position with lid, and the circular edge lid of end cap is attached to the external flange of tubular shell tube port position
Upper and both undercuts convert into and connect, and the body recess portion in circular edge region of end cap sinks and is placed in tubular shell nozzle
Interior, have between described body recess portion and circular edge transition wall with the inwall of tubular shell tube port position corresponding arrangement, end cap
On the inner side plate face in body recess portion be disposed with attic base, the outside plate face in body recess portion is arranged binding post, wiring
Terminal is electrically connected with the capacitor terminal strip contact in tubular shell.
Compared with prior art, there is following technique effect in the utility model：End cap in the utility model has suitably
Deformability, when breaking down or be aging in capacitor internal, gas and housing cavity in tubular shell, can be produced
Pressure value can raise, and now, be connected because the circular edge of end cap is converted into for undercut with the external flange of tubular shell nozzle, make
The tube port position at the edge and tubular shell that obtain end cap does not almost have displacement, and props up being tied by transition wall of attic base with body recess portion
Close position against therefore propping up attic base does not have displacement yet, and now, the pressure of housing cavity can make body recess portion swell upwards
And it is changed into dome shape, drive binding post also to move so that binding post is divided with the capacitor terminal strip in tubular shell upwards
From, make capacitor power-off, with reach prevent capacitor occur blast purpose.Explosion-proof performance is reliable, stable, effective.
Brief description
Fig. 1 is the cross-sectional view of the capacitor end cap assembly in the utility model one embodiment；
Fig. 2 is the structural representation of the capacitor rubbing surface of end cover in the utility model one embodiment；
Fig. 3 is the structural representation in the capacitor end outer side of lid face in the utility model one embodiment；
Fig. 4 is the structural representation equipped with an attic base for the capacitor rubbing surface of end cover in the utility model one embodiment；
Fig. 5 is the structural representation of the tubular shell in the utility model one embodiment；
Fig. 6 is the structural representation of the medial surface of an attic base in the utility model one embodiment；
Fig. 7 is the side view of the attic base in the utility model one embodiment.
Specific embodiment
With reference to Fig. 1 to Fig. 7, the utility model is described in further detail.
Refering to shown in Fig. 1 to Fig. 5, present embodiments providing a kind of noinductive capacitor, it is located at including tubular shell 10 and lid
The end cap 20 of tubular shell 10 tube port position, circular edge 21 lid of end cap 20 is attached on the external flange of tubular shell 10 tube port position
And both undercuts convert into and connect, the body recess portion 22 in circular edge 21 region of end cap 20 sinks and is placed in tubular shell 10
In nozzle, there is the inwall pair of transition wall 23 and tubular shell 10 tube port position between described body recess portion 22 and circular edge 21
Should arrange, the inner side plate face in the body recess portion 22 on end cap 20 is disposed with an attic base 30, the outside plate face in body recess portion 22
Upper arrangement binding post 40, binding post 40 is electrically connected with capacitor terminal strip 50 contact in tubular shell 10.
Specifically, because capacitor breaks down in use or during aging phenomenon, the gas within tubular shell 10
Pressure and temperature can quickly increase, and when the temperature and pressure value of tubular shell 10 inner chamber reaches certain value, capacitor will occur
Blast.An attic base 30 in the present embodiment from the plastic production with certain non-deformability, that is, requires an attic base 30 to have
Suitable rigidity, and end cap 20 is typically made, is had suitable deformability, when capacitor internal breaks down using thin aluminum sheet
When, tubular shell 10 shows as internal gas and produces and chamber pressure rising, due to the circular edge 21 on end cap 20 and tubular
The external flange undercut of housing 10 tube port position converts into and connects, so, between the edge of end cap 20 and tubular shell 10 tube port position almost
There is no displacement, an attic base 30 is subject to transition wall 23 and body recess portion 22 binding site against so propping up attic base 30 certainly
Almost there is no displacement, and the position of binding post 40 is arranged on end cap 20 due to being changed into dome by inner chamber gas pressure
Shape, so, binding post 40 electrically connects destroyed, capacitor stopping with capacitor terminal strip 50 contact in tubular shell 10
Energising, and then realize the purpose of capacitor from explosion.
Specifically, as shown in Figure 1 and Figure 2, the transition between the circular edge 21 of end cap 20 and depressed part 22 in the present embodiment
Wall 23 is column barrel, and the edge of an attic base 30 and the inner end of column barrel are against the axial limiting cooperation constituting an attic base.
Specifically, in conjunction with shown in Fig. 1, Fig. 6, Fig. 7, the oriented end cap in edge 20 side of the attic base 30 in the present embodiment is prolonged
The bulge loop 33 stretched, bulge loop 33 abuts at depressed part 22 edge and the transition bonding of transition wall 23, on end cap 20 and rivet 60
It is sequentially arranged insulation board 70 and insulation cover pad 80, the sleeve pipe 81 on insulation cover pad 80 passes through end cap 20 and incites somebody to action between fixed disk 62
End cap 20 is dielectrically separated from rivet 60 and comes, and the fixed disk 62 of rivet 60 is located between insulation board 70 and an attic base 30.Wherein, prop up
Bulge loop 33 on attic base 30 edge is coordinated against the axial limiting constituting an attic base with the inner end of column barrel, and insulation board 70 docks
40 fixations of line terminals, prevent binding post 40 electrically connecting with capacitor terminal strip 50 contact in tubular shell 10
When position deviation occurs.Pass through end cap 20 by arranging the sleeve pipe 81 on insulation cover pad 80, and insulating sleeve 80 by end cap 20
It is dielectrically separated from rivet 60, and can prevent the capacitive liquid in tubular shell 10 from leaking.
As shown in Figure 6, Figure 7, in the inner side plate face of an attic base 30 in the present embodiment, arranged for interval has rib plate 34, rib
Open up, in the card of an attic base 30 between plate 34, the hole 31 that the taper ailhead 61 for rivet 60 passes through, rib plate 34 is parallel to each other
Arrangement.By rib plate 34 is arranged on the inner side plate face of an attic base 30, on the one hand can increase the rigidity of an attic base 30, make to prop up
Attic base 30 is not allowed yielding, is on the other hand provided with the hole 31 that the taper ailhead 61 for rivet 60 passes through between rib plate 34,
That is capacitor terminal strip 50 is located between rib plate 34 after electrically connecting with taper ailhead 61 contact of rivet 60, such muscle
Batten 34 serves certain position-limiting action to capacitor terminal strip 50.
As shown in Figure 1, Figure 3, the binding post 40 in the present embodiment is the non-conductive socket of Π shape, the bottom land of binding post 40
Abut on terminal base 41, described terminal base 41 is cannula-like, the lower tube section of terminal base 41 is set on sleeve pipe 81, terminal base
Fitted with depressed part 22 in 41 lower surface, binding post 40 is fixed on the outer face of terminal base 41.
As shown in Figure 6, Figure 7, the periphery wall of the attic base 30 in the present embodiment is uniformly provided with least two protuberances 32, protuberance
32 constitute axial limiting cooperation with the inwall of tubular shell 10 against fitting.In prior art, tubular shell 10 and end cap 20 are equal
It is made up of thin-walled aluminium sheet, tube port position shape can suitably deform, the nozzle shape of tubular shell 10 is difficult to keep, such as circular cylindrical shell
The aperture circularity of body is difficult to keep, and so propping up the peripheral profile of attic base 30 and diameter dimension is by theoretical value processing, so
Attic base 30 inserts the nozzle of tubular shell 10 so that when carrying out follow-up capping operation, props up attic base 30 or is difficult to insert nozzle,
Or nozzle can be inserted but combine loosen easily come off, had a strong impact on working (machining) efficiency.The present embodiment passes through in an attic base 30
On periphery wall, at least two protuberances 32 are set up at interval, when will prop up attic base 30 and insert in tubular shell 10, on attic base 30 periphery wall
Protuberance 32 with tubular shell 10 inwall against tubular shell nozzle shape can occur adaptability to become because of the importing of protuberance 32
That is to say, that tubular shell 10 can be locally deformed with the squeezing action of protuberance 32, an attic base 10 just can be easy to shape
Insertion tubular shell 10 in, make the process of assembling very simple, improve efficiency of assembling, and the protuberance 32 of an attic base 30 with
The inwall of tubular shell 10 constitutes axial limiting cooperation against laminating, is that an attic base 30 will not after being assemblied in tubular shell 10
The phenomenon loosening or automatically sighing occurs, improves an accuracy rate for attic base 30 assembling.
Preferably, the periphery wall in an attic base 30 is uniformly provided with 2-5 protuberance 32, both can be attic base 10 and a capacitor
Shell can recline well, save the material of an attic base again, decrease cost of manufacture.
Preferably, the protuberance 32 in the present embodiment includes transition face 321 and binding face 322, and the size of transition face 321 is along electricity
Shell of tank inner chamber is gradually increased to equivalently-sized with binding face 322 from bottom of chamber to opening direction, binding face 322 and capacitor
Inner walls are against laminating.The present embodiment passes through for protuberance 20 to be set to transition face 21 and the form of binding face 22, is ensureing to prop up
Attic base also ensures that while can easily inserting capacitor case that an attic base 10 can be carried out well with capacitor case
Recline, prevent the attic base from occurring loosening phenomenon.
Preferably, the protuberance 32 in the present embodiment is projection or raised line shape.The shape of protuberance 32 is permissible in actual applications
Set according to the concrete size of an attic base 30.
As shown in Figure 1, shown in Figure 5, the taper ailhead 61 of the rivet 60 in the present embodiment adopts energy storage with capacitor terminal strip 50
Butt-joint mode is fixedly connected.And be to be entered with the lead of capacitor body by the artificial terminal by circle copper rod in prior art
Row soldering connects, and this soldering connects not only material cost height, and produces a large amount of smog, not environmentally, copper rod during scolding tin
Welding difficulty very big, easy rosin joint, when capacitor works, often produce the phenomenon that overheated, solder joint disconnects at solder joint, make electricity
Container is easily damaged, the low reliability being simultaneously greatly reduced capacitor use of the efficiency of welding.And pass through in the present embodiment
The mode of energy storage butt-joint connects, and the butt-joint degree of accuracy is high, is not in rosin joint, and reduces material cost, will not produce simultaneously
A large amount of smog, are conducive to environmental protection.
Specifically, in the present embodiment, capacitor terminal strip 50 is riveted to the predetermined position of the taper ailhead 61 of rivet 60
Shi Caiyong goes out energy storage butt-joint mode to be fixed.Capacitor terminal strip 50 in the present embodiment is flat, wherein by capacitor wiring
The meaning that bar 50 is riveted to the predetermined position of taper ailhead 61 of rivet 60 is：Before carrying out energy storage butt-joint, first according to product
The explosion-proof dynamics that product need, determines that capacitor terminal strip 50 is riveted to the position of the taper ailhead 61 of rivet 60, is then passing through
Capacitor terminal strip 50 is fixed on this position by energy storage butt-joint mode.By this be first riveted on butt-joint by way of, can be by electricity
Container terminal strip 50 is fixed on the different explosion-proof dynamics that the diverse location of the taper ailhead 61 of rivet 60 is needed with appropriate products.
Such as, if the explosion-proof dynamics of product needed is larger, capacitor terminal strip 50 can be riveted from taper ailhead 61 relatively short distance
Position carry out butt-joint, if the explosion-proof dynamics of product needed is less, capacitor terminal strip 50 can be riveted from taper ailhead
61 longer-distance positions carry out butt-joint.
Preferably, circular edge 21 lid of the end cap 20 in the present embodiment is attached to and scribbles at the position of tubular shell 10 nozzle
Fluid sealant.By applying fluid sealant in this place, can effectively prevent the capacitive liquid in tubular shell 10 from leaking.
Claims (10)
1. a kind of noinductive capacitor, is located at the end cap (20) of tubular shell (10) tube port position including tubular shell (10) and lid, its
It is characterised by：Circular edge (21) lid of described end cap (20) is attached on the external flange of tubular shell (10) tube port position and both
Undercut converts into and connects, and the body recess portion (22) in circular edge (21) region of end cap (20) sinks and is placed in tubular shell
(10), in nozzle, between described body recess portion (22) and circular edge (21), there are transition wall (23) and tubular shell (10) cylinder
The corresponding arrangement of inwall at mouthful, the inner side plate face in the body recess portion (22) on end cap (20) is disposed with an attic base (30), lid
Arrangement binding post (40) in the outside plate face of depressed part (22), binding post (40) is connect with the capacitor in tubular shell (10)
Lines (50) contact electrically connects.
2. noinductive capacitor as claimed in claim 1 it is characterised in that：The circular edge (21) of end cap (20) and depressed part
(22) transition wall (23) between is column barrel, and the edge of an attic base (30) and column barrel inner end are against composition attic base
Axial limiting coordinates.
3. noinductive capacitor as claimed in claim 2 it is characterised in that：Prop up edge oriented end cap (20) side of attic base (30)
The bulge loop (33) extending, bulge loop (33) abuts at the transition bonding of depressed part (22) edge and column barrel, end cap (20) with
It is sequentially arranged insulation board (70) and insulation cover pad (80), the set on insulation cover pad (80) between fixed disk (62) on rivet (60)
Pipe (81) passes through end cap (20) be dielectrically separated from end cap (20) with rivet (60) to come, and the fixed disk (62) of rivet (60) is located at
Between insulation board (70) and an attic base (30).
4. noinductive capacitor as claimed in claim 3 it is characterised in that：Propping up arranged for interval in the inner side plate face of attic base (30) has
Rib plate (34), the taper ailhead (61) that the card of an attic base (30) between rib plate (34) opens up for rivet (60) passes through
Hole (31), rib plate (34) is arranged parallel to each other.
5. noinductive capacitor as claimed in claim 3 it is characterised in that：Binding post (40) is the non-conductive socket of Π shape, connects
The bottom land of line terminals (40) abuts on terminal base (41), and described terminal base (41) is cannula-like, the down tube of terminal base (41)
Section is set on sleeve pipe (81), and fitted with depressed part (22) in the lower surface of terminal base (41), binding post (40) is fixed on terminal
On the outer face of seat (41).
6. noinductive capacitor as claimed in claim 3 it is characterised in that：The periphery wall of a described attic base (30) is uniformly provided with
At least two protuberances (32), protuberance (32) constitutes axial limiting cooperation with the inwall of tubular shell (10) against fitting.
7. noinductive capacitor as claimed in claim 3 it is characterised in that：Capacitor terminal strip (50) is riveted to rivet (60)
Fixed using going out energy storage butt-joint mode during the predetermined position of taper ailhead (61).
8. noinductive capacitor as claimed in claim 6 it is characterised in that：Described protuberance (32) include transition face (321) and
Binding face (322), the size of transition face (321) along capacitor case inner chamber be gradually increased from bottom of chamber to opening direction to fit
Face (322) equivalently-sized, binding face (322) and capacitor casing inwall are against fitting.
9. noinductive capacitor as claimed in claim 6 it is characterised in that：Described protuberance (32) is projection or raised line shape.
10. the noinductive capacitor as described in any one of claim 1-9 it is characterised in that：The ring-type side of described end cap (20)
It is attached to along (21) lid and scribble fluid sealant at the position of tubular shell (10) nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851812.1U CN205943757U (en) | 2016-08-08 | 2016-08-08 | Explosion -proof capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620851812.1U CN205943757U (en) | 2016-08-08 | 2016-08-08 | Explosion -proof capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943757U true CN205943757U (en) | 2017-02-08 |
Family
ID=57923002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620851812.1U Active CN205943757U (en) | 2016-08-08 | 2016-08-08 | Explosion -proof capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578918A (en) * | 2017-09-27 | 2018-01-12 | 铜陵市胜达电子科技有限责任公司 | A kind of renewable type noinductive capacitor |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
-
2016
- 2016-08-08 CN CN201620851812.1U patent/CN205943757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578918A (en) * | 2017-09-27 | 2018-01-12 | 铜陵市胜达电子科技有限责任公司 | A kind of renewable type noinductive capacitor |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |