CN204927049U - Built -in anti -explosion capacitor - Google Patents
Built -in anti -explosion capacitor Download PDFInfo
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- CN204927049U CN204927049U CN201520707611.XU CN201520707611U CN204927049U CN 204927049 U CN204927049 U CN 204927049U CN 201520707611 U CN201520707611 U CN 201520707611U CN 204927049 U CN204927049 U CN 204927049U
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Abstract
The utility model relates to a built -in anti -explosion capacitor belongs to the condenser field, including cylindric metal casing and apron, the metal -back is external to be equipped with the cylindric shell of moulding, is equipped with protruding muscle on moulding the shell, be equipped with on the metal casing with protruding muscle matched with indentation groove, mould between shell and the metal casing to clearance fit and contact and compress tightly, mould and be equipped with the clearance between the bottom of bottom and the metal casing of shell, be equipped with the sealing washer around the apron, the upper end of metal casing is equipped with the in -flanges, the central authorities of apron are equipped with first boss, are equipped with the baffle on the first boss, the left and right sides of first boss is equipped with the second boss respectively, is equipped with L shape inserted sheet terminal on the second boss, is equipped with the rivet on the inserted sheet terminal, the top of inserted sheet terminal is less than the top of baffle, and the top of baffle is less than the top of moulding the shell. This capacitor structure is simple, and simple to operate is with low costs, and is under the effect of moulding shell and metal casing, explosion -proof of high quality.
Description
Technical field
The utility model relates to a kind of capacitor, particularly relates to a kind of built-in noinductive capacitor.
Background technology
The difference of medium complied with by capacitor, and its kind is a lot, such as: electrolyte capacitance, papery electric capacity, thin-film capacitor, ceramic condenser, mica capacitor, air electric capacity etc.But the most used in sound appliances, surely belong to electrolytic capacitor and film capacitor.Electrochemical capacitor is used in the place needing capacitance very large mostly, such as the filter capacitor of main power source part, except filtering, and the double use doing store electrical energy.Thin-film capacitor is then extensively used in the commissure of analog signal, the places such as the bypass of power supply noise.Film capacitor works as electrode with metal forming, and by itself and poly-ethyl ester, polypropylene, the plastic film such as polystyrene or Merlon, after the overlap of two ends, is wound into the capacitor of cylindric structure.And be hereinafter referred to as poly-ethyl ester electric capacity according to the kind of plastic film, polypropylene capactive, polystyrene electric capacity and poly-carbonic acid electric capacity.Film capacitor, owing to having much excellent characteristic, is therefore a kind of capacitor of excellent performance.Its property such as main is as follows: nonpolarity, insulation impedance is very high, and frequency characteristic is excellent, and dielectric loss is very little.Based on above advantage, so film capacitor is widely used on analog circuit.Especially in the part of signal commissure, necessary frequency of utilization characteristic is good, the capacitor that dielectric loss is extremely low, can guaranteeing that signal is when transmitting, not having too large distortion situation and occurring.
Its structure of film capacitor is identical with paper dielectric capacitance, and medium is terylene or polystyrene etc.Mylar electric capacity, dielectric constant is higher, and volume is little, and capacity is large, and stability is relatively good, is suitable for doing shunt capacitance.Polystyrene film electric capacity, dielectric loss is little, and insulation resistance is high, but temperature coefficient is large, can be used for high-frequency circuit.
In the middle of all plastic film electric capacity, the characteristic of polypropylene capactive and polystyrene electric capacity is the most remarkable, and the price of these two kinds of capacitors is also higher certainly.But sound appliances are in order to promote the quality of sound in recent years, the part material adopted is more and more senior, price not most important considerations, thus in recent years PP electric capacity and PS electric capacity be used in the frequency of sound appliances and quantity also more and more high.Readers often can see the equipment of so-and-so board, are known as the PP matter electric capacity or PS matter electric capacity of having used so-and-so famous brand how many, and with as the endorsement in sound quality, its reason is just at this.
Existing film capacitor mainly installs certain thickness explosion-proof block additional under cover plate, after film capacitor uses for a long time, the electric elements of its inside are easy to breakdown, produce a large amount of gas, because capacitor is originally as enclosed construction, gases at high pressure are gathered in inside; And capacitor self is also easy to after using for a long time produce heat energy, and capacitor case, under the environment of HTHP, is easy to blast, although explosion-proof block ensure that the circuit of that side of cover plate exempts from damage; But in the moment of blast, the impact being easy to make the electronic devices and components of surrounding to be exploded or short circuit or damage, cause whole circuit to be paralysed; And above-mentioned explosion-proof block complex structure, cost is high.
Utility model content
The deficiency that the utility model exists for prior art, provide a kind of built-in noinductive capacitor, concrete technical scheme is as follows:
A kind of built-in noinductive capacitor, comprise cylindric metal shell and cover plate, described metal shell is outside equipped with cylindric moulds shell, mould on shell and be provided with convex tendon, metal shell is provided with the impression groove matched with convex tendon, moulding between shell with metal shell is matched in clearance contact compression, moulds between the bottom of shell and the bottom of metal shell and is provided with gap; Cover plate is arranged on above impression groove, and the edge of cover plate is provided with sealing ring, and the upper end of metal shell is provided with in-flanges, and cover plate and sealing ring are fixed on the top of metal shell under the effect of in-flanges and impression groove; The central authorities of cover plate are provided with the first boss, and the first boss is provided with dividing plate; The left and right sides of the first boss is respectively arranged with the second boss, the second boss is provided with L shape filling-in bit terminal, filling-in bit terminal is provided with rivet, is fixedly connected with between filling-in bit terminal and cover plate by rivet; The top of described filling-in bit terminal is lower than the top of dividing plate, and the top of dividing plate is lower than the top of moulding shell.
As the improvement of technique scheme, described in the center of moulding bottom shell multiple wire reinforcements from the edge of boss to surrounding that be provided with circular boss and disperse along, described boss and reinforcement are arranged on the inside of moulding shell.
As the improvement of technique scheme, the center bottom described metal shell is provided with circular indentation cavity, multiple wire impressions that the inside of indentation cavity is provided with, and described indentation cavity and impression are arranged on the inside of metal shell.
As the improvement of technique scheme, described first boss and cover plate are integral type structure, and the second boss and cover plate are integral type structure, and dividing plate and the first boss are integral type structure.
As the improvement of technique scheme, described filling-in bit terminal is provided with circular hole.
Built-in noinductive capacitor structure described in the utility model is simple, and easy for installation, cost is low, and under the effect of moulding shell and metal shell, explosion-proof quality is good.After capacitor uses for a long time, cause metal shell internal pressure increase and explode owing to being heated, due to the weak spot of indentation cavity and impression, directly popped, and under the effect of boss and reinforcement, prevent moulding shell and popped, effectively prevent the damage of the electronic devices and components around capacitor, reduce maintenance cost, economize on resources.
Accompanying drawing explanation
Fig. 1 is built-in noinductive capacitor structural representation described in the utility model;
Fig. 2 is A place partial enlarged drawing in Fig. 1;
Fig. 3 is built-in noinductive capacitor structural representation (overlooking state) described in the utility model;
Fig. 4 described in the utility modelly moulds shell structure schematic diagram;
Fig. 5 is boss described in the utility model and reinforcing rib structure schematic diagram;
Fig. 6 is metal shell construction schematic diagram described in utility model;
Fig. 7 is indentation cavity described in the utility model and scoring structure schematic diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 6, Fig. 1 is built-in noinductive capacitor structural representation described in the utility model, Fig. 2 is A place partial enlarged drawing in Fig. 1, Fig. 3 is built-in noinductive capacitor structural representation (overlooking state) described in the utility model, Fig. 4 described in the utility modelly moulds shell structure schematic diagram, and Fig. 6 is metal shell construction schematic diagram described in utility model.Described built-in noinductive capacitor, comprise cylindric metal shell 12 and cover plate 13, described metal shell 12 is outside equipped with cylindric moulds shell 11, mould on shell 11 and be provided with convex tendon 111, metal shell 12 is provided with the impression groove 122 matched with convex tendon 111, moulding between shell 11 with metal shell 12 is matched in clearance contact compression, moulds between the bottom of shell 11 and the bottom of metal shell 12 and is provided with gap.The effect of convex tendon 111 coordinates with impression groove 122, and metal shell 12 is fixed on the inside of moulding shell 11, convex tendon 111 also has positioning action, ensures to mould between the bottom of shell 11 and the bottom of metal shell 12 to be provided with gap.This kind of mounting means is convenient and simple, is convenient to control, and cost is low.
Cover plate 13 is arranged on above impression groove 122, and the edge of cover plate 13 is provided with sealing ring 16, and the upper end of metal shell 12 is provided with in-flanges 121, and cover plate 13 and sealing ring 16 are fixed on the top of metal shell 12 under the effect of in-flanges 121 and impression groove 122; Impression groove 122 has stop cover plate 13 to downslide in the part that metal shell 12 inside is outstanding, itself and in-flanges 121 coordinate upper end cover plate 13 being fastened on metal shell 12, under the effect of sealing ring 16, metal shell 12 and cover plate 13 form enclosed construction, ensure the closure of capacitor internal.
The central authorities of cover plate 13 are provided with on the first boss 132, first boss 132 and are provided with dividing plate 133; The left and right sides of the first boss 132 is respectively arranged with on the second boss 131, second boss 131 and is provided with L shape filling-in bit terminal 15, filling-in bit terminal 15 is provided with rivet 14, is fixedly connected with between filling-in bit terminal 15 and cover plate 13 by rivet 14; Described first boss 132 is integral type structure with cover plate 13, and the second boss 131 is integral type structure with cover plate 13, and dividing plate 133 and the first boss 132 are integral type structure.Cover plate 13 has insulating properties, and the first boss 132 and the second boss 131 1 aspect add the thickness in cover plate 13 centre position, have explosion-proof; Second boss 131 also facilitates subsequent installation on the other hand, prevents from causing cover plate 13 damaged because cover plate 13 is too thin when being fixedly connected with rivet 14, reduces conforming product rate.Dividing plate 133 has insulating properties, filling-in bit terminal 15 at place in circuit time, the circuit of dividing plate 133 both sides is separated, avoid because line short circuit cause short-circuit fire.When described built-in noinductive capacitor place in circuit, because the top of described filling-in bit terminal 15 is lower than the top of dividing plate 133, the top of dividing plate 133 is lower than the top of moulding shell 11; This kind of structure protects the filling-in bit terminal 15 in place in circuit not to be subject to the destruction of external mechanical force on the one hand, also has explosion-proof on the other hand.
As shown in Figure 7, Fig. 7 is indentation cavity described in the utility model and scoring structure schematic diagram.Center bottom described metal shell 12 is provided with circular indentation cavity 123, multiple wire impressions 124 that the inside of indentation cavity 123 is provided with, and described indentation cavity 123 and impression 124 are arranged on the inside of metal shell 12.Electronic component when metal shell 12 inside produces gas because puncturing, and the air pressure of metal shell 12 inside is increased, and the gases at high pressure of metal shell 12 inside outwards spray along the direction of indentation cavity 123 and impression 124; Indentation cavity 123 and impression 124 can ensure that the gases at high pressure emission direction of the inside of metal shell 12 is bottom to metal shell 12 instead of cover plate 13, indentation cavity 123 and impression 124 have directional pressure venting effect, prevent from causing the circuit be connected with filling-in bit terminal 15 that more serious damage occurs from cover plate 13 blast.
As shown in Figure 5, Fig. 5 is boss described in the utility model and reinforcing rib structure schematic diagram.Multiple wire reinforcements 113 that described center of moulding bottom shell 11 is provided with circular boss 112 and disperses along the edge of boss 112 to surrounding, described boss 112 and reinforcement 113 are arranged on the inside of moulding shell 11.The effect of boss 112 and reinforcement 113 prevents the gases at high pressure after exploding from producing further damage to moulding bottom shell 11, avoiding the broken metal fragment produced because exploding to outdiffusion, causing accident harm to increase the weight of further.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a built-in noinductive capacitor, comprise cylindric metal shell (12) and cover plate (13), it is characterized in that: described metal shell (12) is outside equipped with cylindric moulds shell (11), mould on shell (11) and be provided with convex tendon (111), metal shell (12) is provided with the impression groove (122) matched with convex tendon (111), moulding between shell (11) with metal shell (12) is matched in clearance contact compression, moulds between the bottom of shell (11) and the bottom of metal shell (12) and is provided with gap; Cover plate (13) is arranged on impression groove (122) top, the edge of cover plate (13) is provided with sealing ring (16), the upper end of metal shell (12) is provided with in-flanges (121), and cover plate (13) and sealing ring (16) are fixed on the top of metal shell (12) under the effect of in-flanges (121) and impression groove (122); The central authorities of cover plate (13) are provided with the first boss (132), the first boss (132) are provided with dividing plate (133); The left and right sides of the first boss (132) is respectively arranged with the second boss (131), second boss (131) is provided with L shape filling-in bit terminal (15), filling-in bit terminal (15) is provided with rivet (14), is fixedly connected with by rivet (14) between filling-in bit terminal (15) and cover plate (13); The top of described filling-in bit terminal (15) is lower than the top of dividing plate (133), and the top of dividing plate (133) is lower than the top of moulding shell (11).
2. the built-in noinductive capacitor of one according to claim 1, it is characterized in that: described in mould center multiple wire reinforcements (113) from the edge of boss (112) to surrounding that be provided with circular boss (112) and disperse along of shell (11) bottom, described boss (112) and reinforcement (113) are arranged on the inside of moulding shell (11).
3. the built-in noinductive capacitor of one according to claim 1, it is characterized in that: the center of described metal shell (12) bottom is provided with circular indentation cavity (123), multiple wire impressions (124) that the inside of indentation cavity (123) is provided with, described indentation cavity (123) and impression (124) are arranged on the inside of metal shell (12).
4. the built-in noinductive capacitor of one according to claim 1, it is characterized in that: described first boss (132) and cover plate (13) are integral type structure, second boss (131) and cover plate (13) are integral type structure, and dividing plate (133) and the first boss (132) are integral type structure.
5. the built-in noinductive capacitor of one according to claim 1, is characterized in that: described filling-in bit terminal (15) is provided with circular hole (151).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707611.XU CN204927049U (en) | 2015-09-14 | 2015-09-14 | Built -in anti -explosion capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707611.XU CN204927049U (en) | 2015-09-14 | 2015-09-14 | Built -in anti -explosion capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204927049U true CN204927049U (en) | 2015-12-30 |
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ID=54976157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520707611.XU Expired - Fee Related CN204927049U (en) | 2015-09-14 | 2015-09-14 | Built -in anti -explosion capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204927049U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844880A (en) * | 2016-10-20 | 2019-06-04 | 松下知识产权经营株式会社 | Capacitor |
| CN110010348A (en) * | 2019-05-05 | 2019-07-12 | 无锡宏广电容器有限公司 | Polypropylene film capacitor high leakproofness end cap |
| CN112655285A (en) * | 2018-10-05 | 2021-04-13 | 株式会社东芝 | Semiconductor package |
-
2015
- 2015-09-14 CN CN201520707611.XU patent/CN204927049U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844880A (en) * | 2016-10-20 | 2019-06-04 | 松下知识产权经营株式会社 | Capacitor |
| CN109844880B (en) * | 2016-10-20 | 2021-04-23 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| CN112655285A (en) * | 2018-10-05 | 2021-04-13 | 株式会社东芝 | Semiconductor package |
| CN112655285B (en) * | 2018-10-05 | 2022-04-01 | 株式会社东芝 | Semiconductor package |
| CN110010348A (en) * | 2019-05-05 | 2019-07-12 | 无锡宏广电容器有限公司 | Polypropylene film capacitor high leakproofness end cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151230 Termination date: 20160914 |